Originally Posted By: CATERHAM
He of course has oil gauges and his maximum oil temp's don't get above 82C, so regardless of how hard he does or doesn't drive the car he certainly is not taking any changes or "experimenting" he is simply optimizing the operational viscosity in the engine.
It makes a whole lot more sense to run the oil he is running with the way he operates the Enzo than the spec' 10W-60.
Given those operating parameters, that setup makes perfect sense. Glad you were able to shed some additional light on it. Though technically it is still experimenting, as he's running a non-spec lubricant, even if it is still not a huge step down in operational viscosity.
Kind of reminds me of the pre 03/00 M5 guys running M1 0w-40, GC...etc. Technically, those engines were never back-spec'd for the LL-01 oils, they still spec 10w-60. But of course the post 03/00 cars DID get spec'd for LL-01, so while technically an "experiment" as they are running a non-spec lube, it is one done with knowledge of what is essentially the exact same engine calling for the lighter oil with nothing more than a piston ring change.
Quote:
In his wife's Lambo' he is running Motorcraft syn-blend 5W-20 (HTHSV 2.65cP) at present. No argument here that he is using a true 20 grade OTC oil. If I'm not mistaken the Audi V8 in this car is spec'd for a A3/B4 5W-30 and 5W-40. Maximum oil temp's have reached 226F and the oil test spec's have been tested apparently but it is still just a street driven car.
One could consider this something of an "experiment" but only due to a lack of info on what the maximum permissible oil temp's would be on the spec' oil or minimum OP. If for the sake of argument it was 300F on a 3.6-3.8cP oil then a 2.65cP oil should be fine up to about 265F and that would be under maximum load conditions.
Ali will be posting a UOA of the Motorcraft oil from the Lambo' in due course. I'm sure it will be good.
Quite interested to see that, also sounds like oil temps are reasonably well controlled in that application as well. It isn't an experiment I'd do but I do applaud him for his effort. He can afford to do these things and is doing them for the sake of science/experimentation.