Oil Cooler? Optimal Oil Temps?
Thx!
As stated above; it's important in getting the oil up to an operating temp for the burn off of moisture and unburned gas. Also it's just as important to keep the oil cool enough to prevent thermo break down. You'll be able to actually see the results of thermo break down as carbon deposits left on internal surfaces of your engine. A really good place to check for these deposits is the PCV valve. Some deposit build up in the PCV valve is normal (system just doing it's job). Another place is the inside of the valve covers. And a last dreaded place is the oil filter element itself (fine little particles of carbon). Usually when many carbon particles are found within the filter bad things have gone on.
Patman's temps are right on from what I've seen in the engines I've worked on. I've also seen poorly designed engines run a normal oil temp 270 - 280 F and they were just a constant mess inside and out.
The suggestion of an oil temp gauge sounds to be a good one. I believe the C5 guys got one as standard GM equipment. Wish the common F-body's had one too.
... 1002
If I do change something, I'll prob use a water/coolant based oil cooler. Damn pricey for the C5 tho.. comes with a radiator. $1100 !! Air cooler/no rad was $600.
<strong>Check this out-oil coolerMike Sorrentino ]</strong><hr></blockquote>
Thanks! Some great info in there. Aren't we supposed to use -12 size braided line tho? Could the -8 used in the article have contributed to the oil pressure drop? How much pressure drop is normal?
Is the oil cooler sitting right on the radiator? The Thermo is a nice addition. Wouldn't it be better to move the oil cooler away from the rad tho?
[ November 24, 2001: Message edited by: MelloYellow ]</p>
Trending Topics
Thanks, Jeff
The Best V8 Stories One Small Block at Time
[quote]Originally posted by Patman:
<strong>Ideally you want your oil temps to run around 220-230F, that way it's hot enough to burn off any moisture, plus the engine makes less friction with hotter oil too. Even 240F is safe actually. </strong><hr></blockquote> As engine temps go up, parts expand and there is more friction.
Mineral based oil breaks down much more rapidly at 240° F than it does at 210° F. Ok, so I'm running synthetic oil and it can take 240° but why abuse it?
I've been running an engine oil cooler with a MOCAL thermostat for about 18 months now. My freeway cruising engine oil temp is about 180° and rarely gets up 220°. However my last oil analysis report showed 0.0% water so I think my oil is getting hot enough to evaporate the moisture that finds its way in.
<strong>Just some more info for ya to digest:
As stated above; it's important in getting the oil up to an operating temp for the burn off of moisture and unburned gas. Also it's just as important to keep the oil cool enough to prevent thermo break down. You'll be able to actually see the results of thermo break down as carbon deposits left on internal surfaces of your engine. A really good place to check for these deposits is the PCV valve. Some deposit build up in the PCV valve is normal (system just doing it's job). Another place is the inside of the valve covers. And a last dreaded place is the oil filter element itself (fine little particles of carbon). Usually when many carbon particles are found within the filter bad things have gone on.
Patman's temps are right on from what I've seen in the engines I've worked on. I've also seen poorly designed engines run a normal oil temp 270 - 280 F and they were just a constant mess inside and out.
The suggestion of an oil temp gauge sounds to be a good one. I believe the C5 guys got one as standard GM equipment. Wish the common F-body's had one too.
... 1002</strong><hr></blockquote>
The underside of a oil Filler cap is what I look at when judging another motor for deposits.IMHO. <img src="gr_images/icons/wink.gif" border="0">
[ March 06, 2002: Message edited by: zombiedude ]</p>

