15W50
09-21-2006, 01:28 PM
#16
Nordschleife Master
Yeah, 15W oil is good for New York especially with winter right around the corner......NOT! What a stupid move unless you plan on changing the oil PRIOR to the winter temps coming.
If anybody wants some 15W-50 oil for cheap just let me know. I bought whole bunch and decided that I am going to stick with 0W-40.
If anybody wants some 15W-50 oil for cheap just let me know. I bought whole bunch and decided that I am going to stick with 0W-40.
09-21-2006, 02:19 PM
#17
Burning Brakes
There was a time when the big 3 US auto makers recomend using 10-40W and the use of 20-50W or SAE 30W. Today many of the big 3 recomend 5W-30 or even 5W-20. Times have changed and so has engine designs. IMO I would stick to the main recomendation of 0-40 or 5-40. I feel the 15-50 may have some start up effects with either the lifter or the varioram components. I will continue to use the thicker stuff for my 930, but my newer car will get the thinner stuff.
09-21-2006, 02:36 PM
#19
Rennlist Member
Thread Starter
Alright - I called my mechanic and asked him about the 15w50 in the winter months that it would be too heavy, and he said not at all. He mentioned they are using it in all 996s, specifically higher mileage, and all turbos.... better protection.
This guy has been working with porsches for 30+ years... I gotta believe that he knows better than most people here.
This guy has been working with porsches for 30+ years... I gotta believe that he knows better than most people here.
09-21-2006, 02:54 PM
#20
Drifting
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Originally Posted by rcg412
Alright - I called my mechanic and asked him about the 15w50 in the winter months that it would be too heavy, and he said not at all. He mentioned they are using it in all 996s, specifically higher mileage, and all turbos.... better protection.
This guy has been working with porsches for 30+ years... I gotta believe that he knows better than most people here.
This guy has been working with porsches for 30+ years... I gotta believe that he knows better than most people here.
09-21-2006, 02:56 PM
#21
Drifting
I'll make extra popcorn for those who want to sit back and watch the fight!
__________________
Tim K.
'04 996 C2 Lapis Blue over Gray
SIG by Chads996
Tim - That's a good one!!!
I'll take a beer too if you have one.
__________________
Tim K.
'04 996 C2 Lapis Blue over Gray
SIG by Chads996
Tim - That's a good one!!!
I'll take a beer too if you have one.
09-21-2006, 03:13 PM
#22
Race Car
Why would anyone ignore the current manufacturer's recommendation.
Maybe because some people have a little more experience with engines in the real world versus some of the desk bound engineers who make these unfounded recommendations.
So, let’s review. There are some people who insist on using 0W40 oil because it is approved by Porsche. Their argument, for the most part, is that Porsche knows better than anyone what is best for their cars.
Yet, they do not run “N” rated tires which are the only tire approved. They change oil at 5,000 miles rather than the higher mileage recommended by Porsche. They use gear lube that is not approved. They run tire pressures which are not recommended. They make various body mods that affect the aerodynamics of the vehicle. They tune the engine to produce more power than the infallible engineers determined was the best for the vehicle. They fill their windshield washer reservoir with non Porsche fluid, completely ignoring Porsche’s recommendation. They run spark plugs that are not approved by Porsche. I wonder how many use a battery other than one purchased from Porsche? After market clutches and flywheels not approved by Porsche? Wheel spacers?
I have to assume that for those who made any of the above changes to their Porsche engineered vehicle must have a certain level of intelligence to have determined the changes would not adversely affect the vehicle. I wonder where this level of intelligence is when those same people run 0W40 only because it is oil approved by Porsche.
When people do not understand something, they will always follow the marketing hype.
Maybe because some people have a little more experience with engines in the real world versus some of the desk bound engineers who make these unfounded recommendations.
So, let’s review. There are some people who insist on using 0W40 oil because it is approved by Porsche. Their argument, for the most part, is that Porsche knows better than anyone what is best for their cars.
Yet, they do not run “N” rated tires which are the only tire approved. They change oil at 5,000 miles rather than the higher mileage recommended by Porsche. They use gear lube that is not approved. They run tire pressures which are not recommended. They make various body mods that affect the aerodynamics of the vehicle. They tune the engine to produce more power than the infallible engineers determined was the best for the vehicle. They fill their windshield washer reservoir with non Porsche fluid, completely ignoring Porsche’s recommendation. They run spark plugs that are not approved by Porsche. I wonder how many use a battery other than one purchased from Porsche? After market clutches and flywheels not approved by Porsche? Wheel spacers?
I have to assume that for those who made any of the above changes to their Porsche engineered vehicle must have a certain level of intelligence to have determined the changes would not adversely affect the vehicle. I wonder where this level of intelligence is when those same people run 0W40 only because it is oil approved by Porsche.
When people do not understand something, they will always follow the marketing hype.
09-21-2006, 03:19 PM
#23
Rennlist Member
Thread Starter
The factory is OK with both, that is clearly written in the manual and was factory fill. My oil pressures when the car gets mildly hot are very low, which is somewhat unnerving and cant be good for "achieving" horsepower. But I am not a mechanical engineer, or mechanic, so I dont really know for sure.
I'm bowing out on this one...
I'm bowing out on this one...
09-21-2006, 03:28 PM
#24
Three Wheelin'
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Originally Posted by 1999Porsche911
Why would anyone ignore the current manufacturer's recommendation.
Maybe because some people have a little more experience with engines in the real world versus some of the desk bound engineers who make these unfounded recommendations.
So, let’s review. There are some people who insist on using 0W40 oil because it is approved by Porsche. Their argument, for the most part, is that Porsche knows better than anyone what is best for their cars.
Yet, they do not run “N” rated tires which are the only tire approved. They change oil at 5,000 miles rather than the higher mileage recommended by Porsche. They use gear lube that is not approved. They run tire pressures which are not recommended. They make various body mods that affect the aerodynamics of the vehicle. They tune the engine to produce more power than the infallible engineers determined was the best for the vehicle. They fill their windshield washer reservoir with non Porsche fluid, completely ignoring Porsche’s recommendation. They run spark plugs that are not approved by Porsche. I wonder how many use a battery other than one purchased from Porsche? After market clutches and flywheels not approved by Porsche? Wheel spacers?
I have to assume that for those who made any of the above changes to their Porsche engineered vehicle must have a certain level of intelligence to have determined the changes would not adversely affect the vehicle. I wonder where this level of intelligence is when those same people run 0W40 only because it is oil approved by Porsche.
When people do not understand something, they will always follow the marketing hype.
Maybe because some people have a little more experience with engines in the real world versus some of the desk bound engineers who make these unfounded recommendations.
So, let’s review. There are some people who insist on using 0W40 oil because it is approved by Porsche. Their argument, for the most part, is that Porsche knows better than anyone what is best for their cars.
Yet, they do not run “N” rated tires which are the only tire approved. They change oil at 5,000 miles rather than the higher mileage recommended by Porsche. They use gear lube that is not approved. They run tire pressures which are not recommended. They make various body mods that affect the aerodynamics of the vehicle. They tune the engine to produce more power than the infallible engineers determined was the best for the vehicle. They fill their windshield washer reservoir with non Porsche fluid, completely ignoring Porsche’s recommendation. They run spark plugs that are not approved by Porsche. I wonder how many use a battery other than one purchased from Porsche? After market clutches and flywheels not approved by Porsche? Wheel spacers?
I have to assume that for those who made any of the above changes to their Porsche engineered vehicle must have a certain level of intelligence to have determined the changes would not adversely affect the vehicle. I wonder where this level of intelligence is when those same people run 0W40 only because it is oil approved by Porsche.
When people do not understand something, they will always follow the marketing hype.
The Best Response Yet!!!
09-21-2006, 04:37 PM
#25
Newbies Hospitality Director
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Originally Posted by DreamCarrera
I'll make extra popcorn for those who want to sit back and watch the fight!
__________________
Tim K.
'04 996 C2 Lapis Blue over Gray
SIG by Chads996
Tim - That's a good one!!!
I'll take a beer too if you have one.
__________________
Tim K.
'04 996 C2 Lapis Blue over Gray
SIG by Chads996
Tim - That's a good one!!!
I'll take a beer too if you have one.
09-21-2006, 05:05 PM
#26
Rennlist Member
I chose the oil that Mr. Ruf(the only guy that Porsches allows to pull cars off the line, do what he wants to them and put his own VIN number on them) puts in every 996 they service 0w40 For the previous poster, They modify just a few cars a month.
0w40 For the previous poster, They modify just a few cars a month.
09-21-2006, 05:31 PM
#27
Originally Posted by 1999Porsche911
Why would anyone ignore the current manufacturer's recommendation.
Maybe because some people have a little more experience with engines in the real world versus some of the desk bound engineers who make these unfounded recommendations.
So, let’s review. There are some people who insist on using 0W40 oil because it is approved by Porsche. Their argument, for the most part, is that Porsche knows better than anyone what is best for their cars.
Yet, they do not run “N” rated tires which are the only tire approved. They change oil at 5,000 miles rather than the higher mileage recommended by Porsche. They use gear lube that is not approved. They run tire pressures which are not recommended. They make various body mods that affect the aerodynamics of the vehicle. They tune the engine to produce more power than the infallible engineers determined was the best for the vehicle. They fill their windshield washer reservoir with non Porsche fluid, completely ignoring Porsche’s recommendation. They run spark plugs that are not approved by Porsche. I wonder how many use a battery other than one purchased from Porsche? After market clutches and flywheels not approved by Porsche? Wheel spacers?
I have to assume that for those who made any of the above changes to their Porsche engineered vehicle must have a certain level of intelligence to have determined the changes would not adversely affect the vehicle. I wonder where this level of intelligence is when those same people run 0W40 only because it is oil approved by Porsche.
When people do not understand something, they will always follow the marketing hype.
Maybe because some people have a little more experience with engines in the real world versus some of the desk bound engineers who make these unfounded recommendations.
So, let’s review. There are some people who insist on using 0W40 oil because it is approved by Porsche. Their argument, for the most part, is that Porsche knows better than anyone what is best for their cars.
Yet, they do not run “N” rated tires which are the only tire approved. They change oil at 5,000 miles rather than the higher mileage recommended by Porsche. They use gear lube that is not approved. They run tire pressures which are not recommended. They make various body mods that affect the aerodynamics of the vehicle. They tune the engine to produce more power than the infallible engineers determined was the best for the vehicle. They fill their windshield washer reservoir with non Porsche fluid, completely ignoring Porsche’s recommendation. They run spark plugs that are not approved by Porsche. I wonder how many use a battery other than one purchased from Porsche? After market clutches and flywheels not approved by Porsche? Wheel spacers?
I have to assume that for those who made any of the above changes to their Porsche engineered vehicle must have a certain level of intelligence to have determined the changes would not adversely affect the vehicle. I wonder where this level of intelligence is when those same people run 0W40 only because it is oil approved by Porsche.
When people do not understand something, they will always follow the marketing hype.
just an fyi....consequently each time 0w-40 has been used in my pcars, I suffer an rms leak. when filled with 15w-50, no leak. coincidence?
ok...just kidding! lol
heck, I've ihad great results using evo! y'all should try that!
09-21-2006, 10:34 PM
#28
Drifting
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Originally Posted by 1999Porsche911
Why would anyone ignore the current manufacturer's recommendation.
Maybe because some people have a little more experience with engines in the real world versus some of the desk bound engineers who make these unfounded recommendations.
So, let’s review. There are some people who insist on using 0W40 oil because it is approved by Porsche. Their argument, for the most part, is that Porsche knows better than anyone what is best for their cars.
Yet, they do not run “N” rated tires which are the only tire approved. They change oil at 5,000 miles rather than the higher mileage recommended by Porsche. They use gear lube that is not approved. They run tire pressures which are not recommended. They make various body mods that affect the aerodynamics of the vehicle. They tune the engine to produce more power than the infallible engineers determined was the best for the vehicle. They fill their windshield washer reservoir with non Porsche fluid, completely ignoring Porsche’s recommendation. They run spark plugs that are not approved by Porsche. I wonder how many use a battery other than one purchased from Porsche? After market clutches and flywheels not approved by Porsche? Wheel spacers?
I have to assume that for those who made any of the above changes to their Porsche engineered vehicle must have a certain level of intelligence to have determined the changes would not adversely affect the vehicle. I wonder where this level of intelligence is when those same people run 0W40 only because it is oil approved by Porsche.
When people do not understand something, they will always follow the marketing hype.
Maybe because some people have a little more experience with engines in the real world versus some of the desk bound engineers who make these unfounded recommendations.
So, let’s review. There are some people who insist on using 0W40 oil because it is approved by Porsche. Their argument, for the most part, is that Porsche knows better than anyone what is best for their cars.
Yet, they do not run “N” rated tires which are the only tire approved. They change oil at 5,000 miles rather than the higher mileage recommended by Porsche. They use gear lube that is not approved. They run tire pressures which are not recommended. They make various body mods that affect the aerodynamics of the vehicle. They tune the engine to produce more power than the infallible engineers determined was the best for the vehicle. They fill their windshield washer reservoir with non Porsche fluid, completely ignoring Porsche’s recommendation. They run spark plugs that are not approved by Porsche. I wonder how many use a battery other than one purchased from Porsche? After market clutches and flywheels not approved by Porsche? Wheel spacers?
I have to assume that for those who made any of the above changes to their Porsche engineered vehicle must have a certain level of intelligence to have determined the changes would not adversely affect the vehicle. I wonder where this level of intelligence is when those same people run 0W40 only because it is oil approved by Porsche.
When people do not understand something, they will always follow the marketing hype.
Windshield washer fluid is as critical to the performance of a fine sports car as the oil in it's motor???
If the motor doesn't run none of the other things you list matter at all. I don't know the answer, but it was quite apparent from the previous thread on this topic that you don't either. So that being given, I'll rely on the folks with the best data and who warranty these vehicles (which is the point of specific recommendations like clutches, etc. quite obviously). I apparently missed the "marketing" hype that I was swayed by.
TV ads? Print media? Fill me in.>>>The factory is OK with both, that is clearly written in the manual and was factory fill. My oil pressures when the car gets mildly hot are very low, which is somewhat unnerving and cant be good for "achieving" horsepower.<<<
Well, actually it is. Put thicker oil in, get less HP out. Ask some motorsports professionals if they run lighter oil for qualifying than for an enduro.
09-22-2006, 12:50 AM
#29
Burning Brakes
Originally Posted by 1999Porsche911
Why would anyone ignore the current manufacturer's recommendation.
Maybe because some people have a little more experience with engines in the real world versus some of the desk bound engineers who make these unfounded recommendations.
So, let’s review. There are some people who insist on using 0W40 oil because it is approved by Porsche. Their argument, for the most part, is that Porsche knows better than anyone what is best for their cars.
Yet, they do not run “N” rated tires which are the only tire approved. They change oil at 5,000 miles rather than the higher mileage recommended by Porsche. They use gear lube that is not approved. They run tire pressures which are not recommended. They make various body mods that affect the aerodynamics of the vehicle. They tune the engine to produce more power than the infallible engineers determined was the best for the vehicle. They fill their windshield washer reservoir with non Porsche fluid, completely ignoring Porsche’s recommendation. They run spark plugs that are not approved by Porsche. I wonder how many use a battery other than one purchased from Porsche? After market clutches and flywheels not approved by Porsche? Wheel spacers?
I have to assume that for those who made any of the above changes to their Porsche engineered vehicle must have a certain level of intelligence to have determined the changes would not adversely affect the vehicle. I wonder where this level of intelligence is when those same people run 0W40 only because it is oil approved by Porsche.
When people do not understand something, they will always follow the marketing hype.
Maybe because some people have a little more experience with engines in the real world versus some of the desk bound engineers who make these unfounded recommendations.
So, let’s review. There are some people who insist on using 0W40 oil because it is approved by Porsche. Their argument, for the most part, is that Porsche knows better than anyone what is best for their cars.
Yet, they do not run “N” rated tires which are the only tire approved. They change oil at 5,000 miles rather than the higher mileage recommended by Porsche. They use gear lube that is not approved. They run tire pressures which are not recommended. They make various body mods that affect the aerodynamics of the vehicle. They tune the engine to produce more power than the infallible engineers determined was the best for the vehicle. They fill their windshield washer reservoir with non Porsche fluid, completely ignoring Porsche’s recommendation. They run spark plugs that are not approved by Porsche. I wonder how many use a battery other than one purchased from Porsche? After market clutches and flywheels not approved by Porsche? Wheel spacers?
I have to assume that for those who made any of the above changes to their Porsche engineered vehicle must have a certain level of intelligence to have determined the changes would not adversely affect the vehicle. I wonder where this level of intelligence is when those same people run 0W40 only because it is oil approved by Porsche.
When people do not understand something, they will always follow the marketing hype.
09-22-2006, 02:16 AM
#30
Drifting
This thread is for people to share their opinion of which weight of oil they perfer and why. There are really no right or wrong answers here that at this time are universally accepted, only opinions based on what owners preceive to be important and in their cars best interest. Some makes sense, some nonsense. For some, the reason to use, is others not to use. I have read where some use 0w40 to keep the lifters quiet and others feel it contributes to noisy lifters. I found out a long time ago that because someone in a certain position recommends a certain product, that they may actually know less than I about it.
I do know a fair amount about oil, as in my business I build high performance motors and have since the '70's. I have raced at Bonneville, roadraced motorcycles for 8 years using motors (Superbike) that I have designed and successfully built. I have never had an oil related problem or failure. I sell oil, filters and the like, see first hand what works and doesn't and why.
Bottom line is, use what you like, as you are probably more difficult to please than your motor. For about all of the lower 48 anything for street use from 0w40 to 20w50 should be fine. Keep it full and keep it clean, thicker w weights will warm up slower and should be treated accordingly. Once the engine is at operating temperature there is very little difference between Xw40 and Xw50 although it was explained to me by a Petro-Chemical engineer that the lighter oil creates less oil sheer (friction) and will remove heat more efficiently.
I do know a fair amount about oil, as in my business I build high performance motors and have since the '70's. I have raced at Bonneville, roadraced motorcycles for 8 years using motors (Superbike) that I have designed and successfully built. I have never had an oil related problem or failure. I sell oil, filters and the like, see first hand what works and doesn't and why.
Bottom line is, use what you like, as you are probably more difficult to please than your motor. For about all of the lower 48 anything for street use from 0w40 to 20w50 should be fine. Keep it full and keep it clean, thicker w weights will warm up slower and should be treated accordingly. Once the engine is at operating temperature there is very little difference between Xw40 and Xw50 although it was explained to me by a Petro-Chemical engineer that the lighter oil creates less oil sheer (friction) and will remove heat more efficiently.
