Thicker oil made a noticeable difference.
02-12-2011, 11:38 PM
#17
Three Wheelin'
That's a good idea, maybe another one too for TBF for the automatic cars.
02-12-2011, 11:39 PM
#18
Rennlist Member
And, Your point?
I feel like I'm trapped in "Groundhog Day."
Can't we have a place to go where people can read the threads that have been already done about oil thickness? I don't even have to read the answers from the people that post them...I already know exactly what they are going to say.
It's almost like Deja Vu on a bad acid trip....not that I'd know what that was.
Can't we have a place to go where people can read the threads that have been already done about oil thickness? I don't even have to read the answers from the people that post them...I already know exactly what they are going to say.
It's almost like Deja Vu on a bad acid trip....not that I'd know what that was.
In your case to share knowledge,
in my case to learn and be sarcastic where appropriate...
We live in an "instant gratification" society. What, take a couple of hours to research and read and maybe learn...?????? WTF????
Sorry, I have teenage boys.....
02-13-2011, 04:00 AM
#20
Instructor
Join Date: Sep 2010
Location: San Francisco Bay Area, Santa Clara
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"I am planning on getting an oil pressure tester so I can get more accurate readings as well as assess gauge accuracy. My question is whether or not my current oil pressure readings are where they should be. "
Your oil pressure readings are completely normal. Forget about a tester. What's the point of more accurate readings anyway? Engines vary, so do gauges. What are you going to do with the info? Are you going to rebuild the engine because it has 4.5 bar at 2K rpm instead of 5? Of course not. Older engines have lower oil pressure because they are more worn. This of itself is not of concern. A sudden massive drop in oil pressure IS a cause of concern.
Your oil pressure readings are completely normal. Forget about a tester. What's the point of more accurate readings anyway? Engines vary, so do gauges. What are you going to do with the info? Are you going to rebuild the engine because it has 4.5 bar at 2K rpm instead of 5? Of course not. Older engines have lower oil pressure because they are more worn. This of itself is not of concern. A sudden massive drop in oil pressure IS a cause of concern.
02-13-2011, 04:23 AM
#22
Three Wheelin'
The reason is that 15W50 shears faster than 20W50 at high temperature. Temperature do get in the 90-109 range in summers down here. I don't know what temperature the cars were being operated at when the oil light warning light came on, but I know it was in summer.
02-13-2011, 04:25 AM
#23
Nordschleife Master
The API specs are for a range of viscosities.
I use a 15W50 and a 20W60, both of which also meet the specs for 20W50 - there is some overlap in permitted viscosities.
I also only use oils where the maker publishes openly their contents in terms of zinc, phosphorous, ash etc. None of the "magic magnetic particles" BS for me thanks.
I use a 15W50 and a 20W60, both of which also meet the specs for 20W50 - there is some overlap in permitted viscosities.
I also only use oils where the maker publishes openly their contents in terms of zinc, phosphorous, ash etc. None of the "magic magnetic particles" BS for me thanks.
02-13-2011, 12:17 PM
#24
Instructor
Join Date: Jul 2007
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The API specs are for a range of viscosities.
I use a 15W50 and a 20W60, both of which also meet the specs for 20W50 - there is some overlap in permitted viscosities.
I also only use oils where the maker publishes openly their contents in terms of zinc, phosphorous, ash etc. None of the "magic magnetic particles" BS for me thanks.
I use a 15W50 and a 20W60, both of which also meet the specs for 20W50 - there is some overlap in permitted viscosities.
I also only use oils where the maker publishes openly their contents in terms of zinc, phosphorous, ash etc. None of the "magic magnetic particles" BS for me thanks.
I'm with you on this. I use Penrite HPR 15 - it has healthy doses of both zinc and phosphorus.
02-13-2011, 11:45 PM
#28
Rennlist Member
Thread Starter
car is 5spd. I ran it with 10w 30 last summer too, never had oil warning lamp come on or gauge read any lower. not saying it did the engine any good though. will post more later, I'm using my PSP.
02-14-2011, 12:19 AM
#29
Rennlist Member
02-14-2011, 11:21 AM
#30
Rennlist Member
OK, I have this question then. re Street use: (coolant temp vs. oil temp vs. engine temp). Coolant temp is going to vary somewhat according to OAT and work load. Some of us are running cooler thermostats in the bridge. If you are not tracking or sitting excessively in traffic, (and the cooling system is working properly) and the viscosity is the same . . . . then how much does the oil temp vary from the coolant?? And then the issue is pretty much zinc?