Owner reviews for engine oil

Been using that oil on my Gen 3 Montero since 2020, and ok naman, no complaints.

Had een Corsa van 2008 met ketting. Deze begon al vrij snel olie te drinken (liter per 3000km).

Toen kreeg ik het advies om deze olie te kopen van een vriend, daar heb ik probleemloos nog 7 jaar mee gereden.

Motul x-clean EFE. Went back to 5W-30 since I saw some MPG lost (the STI is DD).

Motul 8100xclean 5w40 during the summer since I'm in az and every day is 100+, the 5w30 loses its viscosity too fast in the summer

I noticed that the engine was way smoother (way less vibration) when lightly lugging the gears at 1600 - 1800 rpm on the Valvoline vs the stock oil or Castrol Magnatec. The Valvoline did the same on my 2022 BRZ vs the stock oil and the dealership bulk Magnatec. I also tried Shell oil and the Valvoline is by far the smoothest below 2000 rpm. Almost no oil burnt or evaporated in between oil changes on both cars (less than 100ml per 3k miles) with the Valvoline Advanced.

STP SYN Full Synthetic. No issues.

I have used Eneos 5w30 in it since I bought it. This is a group 5 oil and I believe that it saved my ass. Last summer going to work my car blew the top radiator hose off. I was about 3 miles from work and so I decided to just drive it. The temp gauge was pegged all the way. Come to find out my radiator inlet broke since it was plastic. I was able to get the hose back on after work and filled it up with coolant. Replaced the radiator with an aluminum CSF two row and knock on wood everything has been good since. Not losing water or oil and no smoke coming out the tailpipe or anything.

Castrol 5w-30 been fine in every vehicle I had

0w20 provides your engine with more wear protection .

There is minimal difference between 0w16 and 0w20, with 0w20 provided marginally better wear protection and 0w16 providing slightly better fuel efficiency since it's slightly thinner and provides less internal resistance.

Make sure you don't run Mobil 1. Subaru engines tend to shear Mobil 1 down to a lower weight oil quickly.