Quote:
Originally Posted by glamcem
oil degradation doesn't start below 280F ..
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I know but I was not talking about degradation. I was talking about a condition in which the "wedge" wouldn't be formed and the film thickness would be overcome which can happen when the oil is very thin and lots of load is applied at lower RPMs.
Quote:
Originally Posted by glamcem
but to be extra cautious; I always monitor my temps
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I get that but my frustration is that you then say...
Quote:
Originally Posted by glamcem
I think the oil pressures should be very close to the ideal 10 psi per 1000 rpm with Mobil 1 5w-30
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And that's my issue is that you aren't paying attention to what your oil pressure is.
Look at Dezoris' chart here:
http://www.ft86club.com/forums/showt...t=oil+pressure
Quote:
10W30 Redline
10w30 Redline 245F @ 800RPM 7PSI Oil Pressure
10w30 Redline 245F @ 2000RPM 35PSI Oil Pressure
10w30 Redline 245F @ 4000RPM 52PSI Oil Pressure
10w30 Redline 245F @ 7000RPM 46PSI Oil Pressure
10W40 Redline (12 Laps)
10w40 Redline 265F @ 800RPM 8PSI Oil Pressure
10w40 Redline 265F @ 2000RPM 31PSI Oil Pressure
10w40 Redline 265F @ 4000RPM 55PSI Oil Pressure
10w40 Redline 265F @ 7000RPM 45PSI Oil Pressure
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As you can see, at oil temperatures that you run, you are NOT getting anywhere near your 10psi/1000rpm with your 30wt oil. Which what I've been trying to say all along.. the FA20 is NOT GOOD at making good oil pressure at high oil temps.
Now you're going to tell me that pressure doesn't matter and it's all about flow and we'll start this rodeo all over again... But oh well, that's what happens in every oil thread on every car forum so it's all part of the fun.
