oil pressure
#11
RE: oil pressure
A lighter oil will flow easier, but it won't result in higher oil pressure. If anything the oil pressure will be lower. The oil pressure is higher on a cold engine because the oil is thicker at low temperarture. Oil getting dark is an indication that the detergents are doing their job and cleaning the engine. An oil that looks clean all the time, is not doing a good job of keeping the engine clean.
#12
RE: oil pressure
ORIGINAL: z28pete
No less than 5 PSI at idle and at least a 10 PSI increase for each 1000 RPM increase. So it would be a minimum of 15 PSI @ 1000 RPM, 55 PSI @ 5000 RPM, etc.. This is with engine fully warmed up and the recommended 5W30 oil. It should be higher on a cold engine or if heavier grade of oil is used.
No less than 5 PSI at idle and at least a 10 PSI increase for each 1000 RPM increase. So it would be a minimum of 15 PSI @ 1000 RPM, 55 PSI @ 5000 RPM, etc.. This is with engine fully warmed up and the recommended 5W30 oil. It should be higher on a cold engine or if heavier grade of oil is used.
#13
RE: oil pressure
most likely the stock instrument clusters arent 100% accurate, i would get a aftermarket oil pressure gauge,and i know everyone is concerned what the lowest psi should be, but what is the highest psi could be ?
#14
RE: oil pressure
The highest PSI is set by the relief valve; however, if the oil is too thick the pressure will exceed the relief valve setting. Unless you have an all out racing engine, pressures over 100 PSI could cause problems, ranging from broken pump drives to eroded main bearings & stuff in between such as blown filters, blown seals, etc...
Thread
Thread Starter
Forum
Replies
Last Post
royco95
93-02 General
28
08-02-2015 10:25 AM
BoricuaHec01
LS Series Tech
1
03-17-2011 05:56 PM