Engine oil MOTUL or OEM Subaru

MOTUL Engine oil

I just hit 250,000 miles on my daily driven '95 M3. I've been using Motul 8100 X-CESS 5w-40 for the past 3 years or so. Prior to that, I was using Castrol Edge Euro 5w-30, which was the BMW factory fill. The Motul often comes out still golden. The Castrol always came out black. Didn't need to do an oil analysis to know which one had fewer metal particles.

Pros: Motul oil stays golden
Cons: Castrol oil comes out black
Vehicle: BMW
Mileage: 250000 km
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MOTUL Engine oil

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.

Pros: holding up best to fuel dilution
Vehicle: Subaru
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MOTUL Engine oil

I won't recommend Motul for Gixxer 250

10w-50 7100 makes the engine run a little hot and refinement goes for a toss (Personal Experience) even Gixxer riders group agreed on this one and it is not even as good as Ecstar oil used in the showroom.

Cons: engine runs hot, refinement suffers
Vehicle: Suzuki
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