My engine builder recommended what was 300v Power 5w40 at the time and is now 300v Competition 5w40 due to it holding up the best to fuel dilution from ethanol.
Motul is the gold standard - the IMSA cars you see with Motul badges really do exclusively use Motul. The shop I work with uses it in classic racing cars that are worth tens of millions.
I used to use Motul 5w30 in my track prepped FRS just as an added layer of protection, even if it is placebo.
Bought my JDM STI bug eye and with fresh 5w30 Motul 6800. Car runs well.
I feel it makes the car run more smooth when compared to the oil changes I did before that were not motul.
Then when I actually tried it, noticing the engine running quieter and the shifts being a little crisper made me keep it.
Your ester based oils like Redline and Motul 300v will provide the best protection from the oil shearing on the track.
Daca vrei un full syntetic adevarat pune Ravenol VMP merg cu el de mai bine de 15 ani la multe masini pe care le-am avut
Currently have Ravenol EFE 0w-16 in and have use Pennzoil Platinum, Eneos, and Idemitsu IFG7. I noticed bit of emulsified oil on the dipstick especially when I run in EV mode mostly. So definitely get it out on the highway on a daily basis if possible and get a used oil analysis. I have had 3 done and all three showed various 0w-16 oils shear down out of grade and their Flashpoints decrease.
I used the Motul 10w50 fully synthetic. After running it for a few months I happened to check oil level and I was shocked to find out that 500ml had disappeared. This never happened on the stock Royal Enfield oil, nor with the Motul 5100, so I was not used to keep checking oil level religiously. But now I do.
Then I checked YouTube reviews to see if others report oil evaporation or burning off. And yes lot of youtubers report it, but still recommended it!
How can you recommend an engine oil that evaporates or burns off, even if it gives slightly better performance? It's ridiculous.
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