How warm should oil be in a turbo engine before sending it?

even thou your temp gauge, if you have one shows warmed up quickly oil takes a while longer depending on ambient temp. a casual 15 min drive from girlfriends house in a NA jetta to mine for an oil change oil felt barely warm!!!!
OTOH, by the time I'm pulling out of my parking lot in the morning, the Camry is putting out heat, not much, but warm air is flowing. 1 block later, at the traffic light, I'm turning the heat dial lower.
 
Miss Moneypenny's tiny turbo engine requires 4 miles on city streets to get up to temperature. At that point her oil temperature has reached 90C/194F. Until then I keep engine speed under 3,000 RPMs. This engine warms up faster than any in my other past or present vehicles ever did. Coolant capacity is a measly 6.3 quarts, and coolant gets up to temperature really quickly.
 
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The redline in my car goes from 5500 - 7000 at a low temp, about 30° C. I would imagine that is designed that way for a reason, and is safe enough, however I usually wait until at least 75°C
 
I've seen the mythical 180 degrees used across many brands/forums - what say you BITOG? Do you really need to wait and stay out of boost shortly after startup/before the oil is warmed up? Is this based on anything or akin to "change you oil after 500 miles b/c of the metal flakes in it"?
With small turbos, it's hard not to stay out of boost.

Plus, back in the day, 10W's were more common than today's 5W and 0W, so the oil will flow easier to lubricate the turbo bearings.
 
With small turbos, it's hard not to stay out of boost.

Plus, back in the day, 10W's were more common than today's 5W and 0W, so the oil will flow easier to lubricate the turbo bearings.
That's what I mean - I get not fully getting into it/launching etc. but it's going to spool up leaving my neighborhood.
 
OTOH, by the time I'm pulling out of my parking lot in the morning, the Camry is putting out heat, not much, but warm air is flowing. 1 block later, at the traffic light, I'm turning the heat dial lower.

Your Camry uses engine coolant to provide heat. Coolant temp greatly differs from oil temp on a cold engine.
 
i think that once you have oil temps about +50 degrees F above the ambient temperature you can assume the engine, turbo, head, all that have warmed and circulated enough to give it at least moderate to heavy but not full throttle.
 
When I owned an '86 Volvo 740 Turbo I waited for the temp gauge to be "off the pin". That turbo came into play with very little acceleration and that was as much as I could do. I didn't romp on it yet but I could see the turbo was starting to spool up.

I bought it new, kept it for 18 1/2 years and 285,000 Km, and sold it with the original turbo still working fine so I must have been doing something right.
 
718 would be better.
719 is the key number.

Hitchhiker : 7's the key number here. Think about it. 7-Elevens. 7 dwarves. 7, man, that's the number. 7 chipmunks twirlin' on a branch, eatin' lots of sunflowers on my uncle's ranch. You know that old children's tale from the sea. It's like you're dreamin' about Gorgonzola cheese when it's clearly Brie time, baby. Step into my office.

Ted : Why?

Hitchhiker : 'Cause you're f'in fired!
 
719 is the key number.

Hitchhiker : 7's the key number here. Think about it. 7-Elevens. 7 dwarves. 7, man, that's the number. 7 chipmunks twirlin' on a branch, eatin' lots of sunflowers on my uncle's ranch. You know that old children's tale from the sea. It's like you're dreamin' about Gorgonzola cheese when it's clearly Brie time, baby. Step into my office.

Ted : Why?

Hitchhiker : 'Cause you're f'in fired!
👀 Don’t bogart that joint 👀
 
I know that ... my response was to another poster who commented on engine coolant temp. Have you had your morning coffee yet?
Wooh, I struck a nerve this morning with Ol Shel. How dare I insinuate he not know the difference between oil temps and water temps.

Your response had very little to do with benjy's original post. So little in fact that I (without noticing) stated basically the same thing that he did.
 
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I'll just stick this here to remind everyone we're on an scientifically based oil forum.

Please show me the rational for risking damage to your turbo due to oil starvation that makes some of you wait until you see 100 C oil temps.

Does the viscosity difference at 80 C make you nervous?
60 C?

If turbos were as delicate as this message forum seems to suggest I'd wager we'd be seeing lots more failed turbos, yet it's considered pretty rare outside of super high mileage.
 
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I'll just stick this here to remind everyone we're on an scientifically based oil forum.

Please show me the rational for risking damage to your turbo due to oil starvation that makes some of you wait until you see 100 C oil temps.

Does the viscosity difference at 80 C make you nervous?
60 C?

If turbos were as delicate as this message forum seems to suggest I'd wager we'd be seeing lots more failed turbos, yet it's considered pretty rare outside of super high mileage.
Metal contracts and expands with changes in temperature. Many cars are equipped with cold start rev limiters.
 
What does the oil temperature have to do with anything as long as the oil is flowing? Which it should be within seconds of start up if you have the proper weight of oil. I'd be more concerned of a cold engine backfire taking out the turbo.

The oil causes drag in the turbo bearings, more viscous = more drag and more twisting of the shaft. You could snap the shaft in half asking full boost on a cold engine. Probably not the first 100 times, but fatigue....

But don't overthink this, some heat thins oil out just nice... As soon as temps appear stabilised I go.
 
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