Quote:
Originally Posted by m3peat
I’ll start asking here and tried searching a little here and there but will move it to the full track section if no solutions.
I have an 09’ with 170k miles and all the usual suspects replaced/upgraded/maintained (sans main bearings) but haven’t touched the radiator.
Car runs really well and engine feels good.
I’ve done one track day and oil temps were as expected, maybe a little over halfway to the 255* mark. It was also December, so cooler here in SoCal.
I have autox’d the car quite a bit and feel like oil temps come much closer to the 255* mark after each event and also closer than the one track day.
I have fresh oil (10w/60 LM) and the updated water pump (metal impeller).
Outside of upgrading my radiator, is there other solutions that won’t cost much?
I’ve put redline water wetter in before but can’t recall if the current coolant tank has it in there (if that even helps oil temps).
FWIW, the Autox’s I generally run at are 60-70 second runs and 8-15 minute breaks between each run. I push the car but generally in 2nd gear the whole time and rarely hit the limiter.
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I had to replace the radiator on my E92 M3 at around 170,000. In relatively low heat, driving on the highway, water temp was setting off warnings and I had to slow down and run with the heater on to get home. (I replaced water pump with no improvement).
I think that radiator replacement is coming soon and you're playing with fire about those rod bearings.