Engine oil - what are you using?
#32
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I'm using this in the four cars that take 20w50.
There are three different version of VR1 though, non-synthetic, synthetic, and synthetic "not for street use".
The last one is rather difficult to find on the store shelf, so little chance of accidentally grabbing it. Lack of detergents mean it will not be good for a street car going 3k - 5k between changes.
When I run out of my current stock of VR-1 I'll go back to Brad Penn.
There are three different version of VR1 though, non-synthetic, synthetic, and synthetic "not for street use".
The last one is rather difficult to find on the store shelf, so little chance of accidentally grabbing it. Lack of detergents mean it will not be good for a street car going 3k - 5k between changes.
When I run out of my current stock of VR-1 I'll go back to Brad Penn.
#33
Drifting
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15 to 20W50 is what you need for the oil pressure and heat.
You need 1100 or more ZDDP for the cams so you dont tear them up when it Idles
Amsoil
Mobil
Valvoline
or
royal purple
are all top oils
Choose your poison
Oh, I use Amsoil and pay $13/L
You need 1100 or more ZDDP for the cams so you dont tear them up when it Idles
Amsoil
Mobil
Valvoline
or
royal purple
are all top oils
Choose your poison
Oh, I use Amsoil and pay $13/L
![](http://i103.photobucket.com/albums/m158/bwmac/Brads%20Porsche/IMG_2244.jpg)
#34
Pro
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If you would like to keep your car for a long time, use 20w50 with a zinc booster. (personally 20w50 Valvoline Vr1 Racing with a can of STP)
If you would like premature engine wear and like to do engine rebuilds every 150k km then 0w40 mobil 1 is for you.
Quick test to see if your oil is good:
Step 1 - drain old oil while car is hot
Step 2 - fill up the car with new oil
Step 3 - let the car warm up to operating temperature and take it for a gentle drive around the block
Step 4 - stop the car in idle
step 5 - Observe your oil pressure gauge, if it is higher than 2 bar the oil approves, the thickness of the oil is allowing for enough pressure to sufficiently squirt the main components.
If it is lower than 2 bar - park it up, drain the oil, apologize to your car, and put some 20w/50 in there with a can of STP.
step 5 - drive it like you stole it, because you know that engine is now protected and wear will be zero.
Mobil 1 is an over-branded American product, they signed a huge contract with Porsche back in the 80s so all of a sudden Porsche has to approve their oil as recommended, not because it's good, but because they get paid for it. It's a win win situation, Exxon get money from people buying the oil, Porsche reduce the lifespan of their vehicles so people will buy more porsche, and they get money from advertising mobil 1.
Am I right, or is the world a better place than I thought? Where consumerism doesn't exist and companies want to help you with keeping their products alive for as long as possible so that you can enjoy them, rather than inducing a premature death causing you to spend more money buying parts or a new car.
Use some logic people.
If you would like premature engine wear and like to do engine rebuilds every 150k km then 0w40 mobil 1 is for you.
Quick test to see if your oil is good:
Step 1 - drain old oil while car is hot
Step 2 - fill up the car with new oil
Step 3 - let the car warm up to operating temperature and take it for a gentle drive around the block
Step 4 - stop the car in idle
step 5 - Observe your oil pressure gauge, if it is higher than 2 bar the oil approves, the thickness of the oil is allowing for enough pressure to sufficiently squirt the main components.
If it is lower than 2 bar - park it up, drain the oil, apologize to your car, and put some 20w/50 in there with a can of STP.
step 5 - drive it like you stole it, because you know that engine is now protected and wear will be zero.
Mobil 1 is an over-branded American product, they signed a huge contract with Porsche back in the 80s so all of a sudden Porsche has to approve their oil as recommended, not because it's good, but because they get paid for it. It's a win win situation, Exxon get money from people buying the oil, Porsche reduce the lifespan of their vehicles so people will buy more porsche, and they get money from advertising mobil 1.
Am I right, or is the world a better place than I thought? Where consumerism doesn't exist and companies want to help you with keeping their products alive for as long as possible so that you can enjoy them, rather than inducing a premature death causing you to spend more money buying parts or a new car.
Use some logic people.
#35
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20w50 Castrol GTX.
Daily driving in this heat, I still see 2 bars of Oil pressure at idle.
No knocking, no heat related pinging, nothing usual.
Never let it get low.
Daily driving in this heat, I still see 2 bars of Oil pressure at idle.
No knocking, no heat related pinging, nothing usual.
Never let it get low.
#36
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BTW, oil manufacturers will and do change there formulae from time to time. So always good to check on ZDDP values from time to time when using the same brand/rating oil over time.
Cheers
Cheers
#37
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Race car: Amsoil RD50w
22k 86.5 Turbo: Mobil 1 15w50
3.6 Turbo 911: Mobil 1 15w50
944TS: Valvoline Racing 20/50 + one quart of straight 60w.
In 100d temps, I noticed on long hot days with the AC maxed in my 944TS, the oil pressure slightly below 2 bar. With fresh VR 20/50 with 1 quart being VR 60w, my oil pressure is at least 1/2 a bar higher with the same heat soak. I might start doing this to my 928 & 911 as well: throwing in a single quart of VR60w with my Mobil 1 oil change. Hmm.
22k 86.5 Turbo: Mobil 1 15w50
3.6 Turbo 911: Mobil 1 15w50
944TS: Valvoline Racing 20/50 + one quart of straight 60w.
In 100d temps, I noticed on long hot days with the AC maxed in my 944TS, the oil pressure slightly below 2 bar. With fresh VR 20/50 with 1 quart being VR 60w, my oil pressure is at least 1/2 a bar higher with the same heat soak. I might start doing this to my 928 & 911 as well: throwing in a single quart of VR60w with my Mobil 1 oil change. Hmm.
#38
Race Car
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The good thing about Mobil 1 15W-50 is that it has the correct hot viscosity for a 928 (50) and also works well all the way down to ~ 30 deg F ambient temperatures. Most of the 20W-50 oils get too thick when it gets that cold. Amsoil and VR-1 racing oils may have better characteristics when racing or long high speed autobahn cruising. I would never use anything less than a xxW-50 oil in a 928 unless I lived in a place where the ambient temperature never exceeded ~85 deg F.
Dan
'91 928GT S/C
475hp/460lb.ft
Dan
'91 928GT S/C
![EEK!](https://rennlist.com/forums/images/smilies/eek.gif)
#39
Nordschleife Master
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I've used Mobil1 "truck and SUV" and Amsoil "European car" for that. Nice oil pressure with both.
#40
Drifting
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I have never seen my car below 3 bar even when its hot hot, but I replaced the main bearings when I first got it.
Bearing wear alows extra oil to leak off and then your oil pressure will be less.
It may be something you want to check if your down to 2 bars pressure but I'm not an expert on these cars.
Maybe Greg or Greg or someone with engine rebuild experience will speak up?
Bearing wear alows extra oil to leak off and then your oil pressure will be less.
It may be something you want to check if your down to 2 bars pressure but I'm not an expert on these cars.
Maybe Greg or Greg or someone with engine rebuild experience will speak up?
#42
Rennlist Member
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Mobil 1 is an over-branded American product, they signed a huge contract with Porsche back in the 80s so all of a sudden Porsche has to approve their oil as recommended, not because it's good, but because they get paid for it. It's a win win situation, Exxon get money from people buying the oil, Porsche reduce the lifespan of their vehicles so people will buy more porsche, and they get money from advertising mobil 1.
Am I right, or is the world a better place than I thought? Where consumerism doesn't exist and companies want to help you with keeping their products alive for as long as possible so that you can enjoy them, rather than inducing a premature death causing you to spend more money buying parts or a new car.
Use some logic people.
Am I right, or is the world a better place than I thought? Where consumerism doesn't exist and companies want to help you with keeping their products alive for as long as possible so that you can enjoy them, rather than inducing a premature death causing you to spend more money buying parts or a new car.
Use some logic people.
So, which one is the good, honest oil company again?
#43
Race Car
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If you would like to keep your car for a long time, use 20w50 with a zinc booster. (personally 20w50 Valvoline Vr1 Racing with a can of STP)
If you would like premature engine wear and like to do engine rebuilds every 150k km then 0w40 mobil 1 is for you.
Quick test to see if your oil is good:
Step 1 - drain old oil while car is hot
Step 2 - fill up the car with new oil
Step 3 - let the car warm up to operating temperature and take it for a gentle drive around the block
Step 4 - stop the car in idle
step 5 - Observe your oil pressure gauge, if it is higher than 2 bar the oil approves, the thickness of the oil is allowing for enough pressure to sufficiently squirt the main components.
If it is lower than 2 bar - park it up, drain the oil, apologize to your car, and put some 20w/50 in there with a can of STP.
step 5 - drive it like you stole it, because you know that engine is now protected and wear will be zero.
Mobil 1 is an over-branded American product, they signed a huge contract with Porsche back in the 80s so all of a sudden Porsche has to approve their oil as recommended, not because it's good, but because they get paid for it. It's a win win situation, Exxon get money from people buying the oil, Porsche reduce the lifespan of their vehicles so people will buy more porsche, and they get money from advertising mobil 1.
Am I right, or is the world a better place than I thought? Where consumerism doesn't exist and companies want to help you with keeping their products alive for as long as possible so that you can enjoy them, rather than inducing a premature death causing you to spend more money buying parts or a new car.
Use some logic people.
If you would like premature engine wear and like to do engine rebuilds every 150k km then 0w40 mobil 1 is for you.
Quick test to see if your oil is good:
Step 1 - drain old oil while car is hot
Step 2 - fill up the car with new oil
Step 3 - let the car warm up to operating temperature and take it for a gentle drive around the block
Step 4 - stop the car in idle
step 5 - Observe your oil pressure gauge, if it is higher than 2 bar the oil approves, the thickness of the oil is allowing for enough pressure to sufficiently squirt the main components.
If it is lower than 2 bar - park it up, drain the oil, apologize to your car, and put some 20w/50 in there with a can of STP.
step 5 - drive it like you stole it, because you know that engine is now protected and wear will be zero.
Mobil 1 is an over-branded American product, they signed a huge contract with Porsche back in the 80s so all of a sudden Porsche has to approve their oil as recommended, not because it's good, but because they get paid for it. It's a win win situation, Exxon get money from people buying the oil, Porsche reduce the lifespan of their vehicles so people will buy more porsche, and they get money from advertising mobil 1.
Am I right, or is the world a better place than I thought? Where consumerism doesn't exist and companies want to help you with keeping their products alive for as long as possible so that you can enjoy them, rather than inducing a premature death causing you to spend more money buying parts or a new car.
Use some logic people.
Dan
'91 928GT S/C
![EEK!](https://rennlist.com/forums/images/smilies/eek.gif)
#44
Nordschleife Master
#45
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what I was saying is that under similar circumstances (same car, outdoor temp, engine load & AC on), my oil pressure is now consistently higher with the single quart of 60w added, all other variables aside.