Owner reviews for engine oil

I use Motul in my built engine (not IAG) per the recommendation of the shop that built it.

Liqui Moly full synthetic. 2qts 10w40 and 1qt 10w50 with the factory Honda filter.

If it’s actually an IAG long block, they spec Motul 8100 X-CESS 5W-40 (or an equivalent high quality 5W-40 full synthetic) because their bearing clearances are set up for that weight, not the thinner OEM oil.

Amsoil 10w-30 metric

Honda HP4S.

Petronas sprinta racing 10w40

I live in Texas so use 10w40 Mobil 1 4t And k&n filter

If you are using VW original oil then stick to it and the service interval. 15 years 229,000km later mine is going strong. I did mess up by doing service at 15k km all these years. Sticking to 12k is best. Instead try iftex system D. Makes a very noticeable difference. More important I feel is changing the air filter more often. And compulsorily changing diesel filter every year.

All in all, that engine oil is expensive, holy liqui moly

cu cat l am folosit mai mult am ajuns la concluzia ca castrol e un gunoi, cel putin pt motorul meu si am trecut la uleiul original ca sa nu le mai incerc pe toate