When is it really warmed up? Oil or Water?
12-30-2005, 05:11 AM
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My coolant temp gauge seems to be a rather liberal with fully warmed up readings; two blocks from the house and its already sitting in the middle of the scale. So, I just keep an eye on the oil pressure gauge.
You have an oil temperature gauge?
You have an oil temperature gauge?
12-30-2005, 05:33 AM
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I should have mentioned that I'm thinking of adding a Oil Temp gauge. It seems to me that the Oil Temp the better indication of the engine being up-to-temp, ie., ready to push hard, high RPMs, etc.
12-30-2005, 05:39 AM
#7
Oil
It's warmed up when the oil temp is elevated to operating temp. I have an oil temp gauge that reads oil temp in the oil pan. It takes only a couple miles for the water temp to raise, but another 5-8 miles for the oil temp to get to about 180 degrees F.
What I recommend to people is to wait till the oil is warm before driving hard.
And, watching the oil pressure gauge is a pretty good way of checking the heat in the motor.
What I recommend to people is to wait till the oil is warm before driving hard.
And, watching the oil pressure gauge is a pretty good way of checking the heat in the motor.
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12-30-2005, 05:48 AM
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Originally Posted by EnthuZ
It's warmed up when the oil temp is elevated to operating temp. I have an oil temp gauge that reads oil temp in the oil pan. It takes only a couple miles for the water temp to raise, but another 5-8 miles for the oil temp to get to about 180 degrees F.
What I recommend to people is to wait till the oil is warm before driving hard.
And, watching the oil pressure gauge is a pretty good way of checking the heat in the motor.
What I recommend to people is to wait till the oil is warm before driving hard.
And, watching the oil pressure gauge is a pretty good way of checking the heat in the motor.
High pressure = low temp right? or is it backwards?
12-30-2005, 05:55 AM
#9
Originally Posted by buho62
High pressure = low temp right? or is it backwards?
Cold oil is THICK, it thins as it heats up. Next time you get in you car with a cold engine, check your gauge, the oil pressure will be around 80-90 psi at about 3000 RPMs. When warmed up, it should drop to around 60 psi.
Caution: Your actual numbers may vary!
12-30-2005, 06:25 AM
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On a cold morning (~35 degrees) I'll be right at 120 psi at 3,000 rpm! I'll take off out of my driveway and when I forget to shift low, watch my oil pressure gauge peg out!!
12-30-2005, 07:29 AM
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Originally Posted by EnthuZ
It's warmed up when the oil temp is elevated to operating temp. I have an oil temp gauge that reads oil temp in the oil pan. It takes only a couple miles for the water temp to raise, but another 5-8 miles for the oil temp to get to about 180 degrees F.
What I recommend to people is to wait till the oil is warm before driving hard.
And, watching the oil pressure gauge is a pretty good way of checking the heat in the motor.
What I recommend to people is to wait till the oil is warm before driving hard.
And, watching the oil pressure gauge is a pretty good way of checking the heat in the motor.
12-30-2005, 09:35 AM
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Ferrari's have both oil and water temp guages, what my friend tells me about his Maranello is that the temperatures of both rise at the same rate, dont know how this relates to the engine having dry sump lub system.
Oil pressure mainly depends on engine speed as the gear pump is directly geared to the crank shaft (I think some newer engines have electrical gear pumps). But when oil is cold the indicated pressure is higher, but actually lesser pressure is seen by the lubricated parts.
Oil pressure mainly depends on engine speed as the gear pump is directly geared to the crank shaft (I think some newer engines have electrical gear pumps). But when oil is cold the indicated pressure is higher, but actually lesser pressure is seen by the lubricated parts.
12-30-2005, 10:45 AM
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Originally Posted by davidv
I drove truck in Greenland (current temperature minus 14 degrees). When I parked the truck, I plugged in the engine block heater (or left the engine running). I doubt if anyone drives a 350Z in such extreme conditions.
so ppl probably do it
12-30-2005, 01:05 PM
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Originally Posted by Resolute
Go by the oil pressure gauge. My .02
Revving the engine with it pegged at 120psi cold is insane. Don't do it.
Will
Revving the engine with it pegged at 120psi cold is insane. Don't do it.
Will
12-30-2005, 02:32 PM
#20
Originally Posted by jvanquish
sometimes in the morning i have to make quick gettaways
Will