E89 3.0 auto oil temp

Westysprinter · Post by **Westysprinter** » Fri Aug 26, 2022 8:40 pm

What’s the expected engine oil temp for a 2010 3.0 E89 auto please
I’ve always ran my race car about 90-100 deg C with water at 70-80 degrees c
My new to me car is running at 110-120 deg c which seems high

B21 · Post by **B21** » Fri Aug 26, 2022 9:48 pm

Westysprinter wrote: ↑Fri Aug 26, 2022 8:40 pm What’s the expected engine oil temp for a 2010 3.0 E89 auto please
I’ve always ran my race car about 90-100 deg C with water at 70-80 degrees c
My new to me car is running at 110-120 deg c which seems high

For a N52 engine , this time of year in the UK that seems pretty normal…obviously depends on how / where you are driving…

Modern cars run all coolants over 100c for fuel efficiency reasons when in cruise modes..

flybobbie · Post by **flybobbie** » Sat Aug 27, 2022 7:18 am

I see 120 on hot days and has been no problem.
In fact good to drive off any moisture in the oil.
I read somewhere these engines run extra hot for efficiency.
Reason for the electric pump more control of temperature..

Westysprinter · Post by **Westysprinter** » Sat Aug 27, 2022 10:18 pm

Thanks for the replies
I’m nervous because oil starts to breakdown around 130 degrees c

B21 · Post by **B21** » Sun Aug 28, 2022 12:49 pm

Normal mineral oils may break down at those temperatures

E89s run on synthetic oils which should see 150c+ without issue

However keeping oil temps between say 100 and 120 is good if you can

Helps avoiding cooking all the plastics in the engine and engine bay

ronk · Post by **ronk** » Sun Aug 28, 2022 1:13 pm

Recently returned from my Euro trip down into SW Germany.

Outside temp 39°c and driving at 90 mph - the oil remained at 120°

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