Oil Change Wrench
Joined: Feb 2008
Posts: 8
RE: Oil Change Wrench
ORIGINAL: NovaResource
If you are such an expert on cars, why can't YOU set the rpm lower yourself?
ORIGINAL: Gary in Sandy Eggo
Like I said earlier, I'm going to ask the dealer if the startup rpm can be set lower.
Like I said earlier, I'm going to ask the dealer if the startup rpm can be set lower.
There was a day when I could and did. That's been gone for a couple decades now. Idle speed, startup idle speed, fuel mixture, etc. is all now controled by the onboard computer. Changes have to be made using computer equipment that can read and reprogram the car's onboard computer.
ORIGINAL: NovaResource
Incorrect. Thinner oil when cold will flow to the areas quicker to provide protection.
ORIGINAL: Gary in Sandy Eggo
It's true that you'll be able to "rev" your engine higher earlier with a thinner base oil, but that's usually at the expense of metal-to-metal separation at normal operating temperatures.
It's true that you'll be able to "rev" your engine higher earlier with a thinner base oil, but that's usually at the expense of metal-to-metal separation at normal operating temperatures.
Reread the quoted statement. The first part sez the same thing your response sez, and the second part addresses steady state operating conditions which you did not appear to notice.
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Joined: May 2005
Posts: 5,297
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RE: Oil Change Wrench
ORIGINAL: Gary in Sandy Eggo
Reread the quoted statement. The first part sez the same thing your response sez, and the second part addresses steady state operating conditions which you did not appear to notice.
ORIGINAL: Gary in Sandy Eggo
It's true that you'll be able to "rev" your engine higher earlier with a thinner base oil, but that's usually at the expense of metal-to-metal separation at normal operating temperatures.
It's true that you'll be able to "rev" your engine higher earlier with a thinner base oil, but that's usually at the expense of metal-to-metal separation at normal operating temperatures.
Joined: Sep 2008
Posts: 7
RE: Oil Change Wrench
is your vehicle "clattering" on cold start? If so it may be a problem with the timing chain tensioners. Your engine is a "bucket shim" type valve train and shouldn't need to pressurize much on cold start to get rid of rocker noise. Your oil system should pressurize to 45-50 psi within a couple of seconds.
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