Engine oil Shell or MOTUL
Motul 8100 xcess 5-40. I got a built shortblock and it’s the best for the boxer engine IMO
Rotella T6 ! Zero issues.
Only use Motul 8100 5w40. I have after market parts and turbo.
Only use motul. XCess gen 2 5w40 for the ‘04 wrx. I get oil samples sent to the lab on the wrx and it has consistently been improving results since switching to motul. At first they were worried about the motor and now they say it looks clean as a whistle
Always used Motul 8100 xclean 5w30 every 3k miles on the dot.
So far itong si Shell yung may pinaka smooth na oil sakin.
Anything from Motul Go for full synthetic and according to the grade and spec recommended by your instruction manual.
Prefer 10w40 full synthetic only.
Motul Xclean. I've read on this that Motul Xcess on FA20 makes more carbon buildup on Piston
I switched to Rotella T6 (5w-40 Full Synth) after running Penzoil, Chevron, Castrol, Mobil, regular non-high mileage 10w-30 dinos in that order over 4000 miles. Worst of this bunch was Mobil and Chevron, the HLA tick was unbearable, even right after the oil change.
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