engine oil temperature?
 

What is the proper running engine oil temperature? thanks, Joe

300
 

300

Thats hot.:eek:

212 minimum 260 hot after hard runs are my goal temps.:drink:
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oil temp
 

your oil temp should be over 215 ,to cook-off condensation,and the high end should never see 285.mine runs around 245

At least 212* during a normal cruise to burn off any condensation and a max of around 260* after a WOT run. These are good numbers to shoot for.

300* is too hot.

300 is to HOT.

180f on the guage. It will be higher than that where unmeasured and boil off water. This number gives you room for hard long runs without running into 260f which is the highest acceptable for short periods. Starting with a cruise temp of 212f doesn't leave a lot of room for hard running. My .02 on the subject.

BTW my gauge reads about 150f on a long cruise and no more than 180f after a 50 mile hard run. No condensation issues at all although I can tell it is close by.

X2 that is how mine runs, heck after a good long wot run I don't like to see it go over 190f:drink:

All the motors we have for the MTI have dry sumps and the most temp I have seen through the whole summer is around 150*.

You also need to take readings from the oil pan where the oil is the hottest.

454 oil temperature
 

new to forum, just purchase a used boat with twin 454's, engines appear to be remans, one engine oil pressure starts around 60 drops to about 40 when in neutral and reving engine to 3000 rpm, installed a oil temp gage and after running engine to operating temp oil temp never goes over 100, any help would be appreicated
tom

Griff is right. You must measure the oil temp in the system where the oil is the hottest and usually that's in the pan or just before the oil cooler or oil cooler thermostat.
We never start our dyno pulls until the engine oil reaches a minimum of 165-170 degrees and in a boat if your temp was 180 degrees or so at idle and low rpms under light load that would be a good starting place and yes I think about 260 degrees on the high side is plenty after hard runs especially if you are just running conventional oils.
Synthetics can take higher temps, but even at 290-300 degress or so they start to loose to much viscosity and lubricating quality. Its very correct that too cool of oil temps will build moisture in the crankcase (condensation) very quickly in a marine engine and the resulting water in oil damage can really wreak havoc on the internals, especially bearings.

Best Regards,
Ray @ Raylar

Griff is right. You must measure the oil temp in the system where the oil is the hottest and usually that's in the pan or just before the oil cooler or oil cooler thermostat.
We never start our dyno pulls until the engine oil reaches a minimum of 165-170 degrees and in a boat if your oil temp was 180 degrees or so at idle and low rpms under light load that would be a good starting place and yes I think about 260 degrees on the high side is plenty after hard runs especially if you are just running conventional oils.
Synthetics can take higher temps, but even at 290-300 degress or so they start to loose to much viscosity and lubricating quality. Its very correct that too cool of oil temps will build moisture in the crankcase (condensation) very quickly in a marine engine and the resulting water in oil damage can really wreak havoc on the internals, especially bearings.

Best Regards,
Ray @ Raylar