8100 X-clean EFE 5W-30 Full Synthetic Motor Oil | Fuel Economy Formula, Helps Protect Emissions Systems | Clean Engine Performance | Long Drain Capable, Improved Engine Responsiveness | 1L

My Mercedes Benz owners’ manual listed 0w-20 recommended; tried it out but produced noticeable valve clicking about 5 mins from cold start. I went back up to this 5w-30, what the dealers/shops use here in CA, and the clicking cold start clicking disappeared. Definitely much happier with this oil, seems high quality, and think it’s mainly the heavier weight is more compatible here in CA. Like the bottle too - has a built-in pouring spout. Definitely recommend and will use again.

3 years using this oil for my Subaru WRX! Great product!

I use this for my 2021 subaru wrx and it always feels great. Even after a couple thousand miles the oil quality stays on top performance

The best oil

I learned from a Subaru engine builder that this will keep the carbon out from under your rings on your pistons.

By far the best oil I’ve ever used in my cars. At first I was like it might be a stupid recommendation but I went along with it for my 17 wrx like someone said in a comment about low rpm it actually brought my rpm up on cold starts which was great being I’m in the north. It was kinda scary at first because it hadn’t felt like that since I had initially bought it but over time my car and I became very fond of it. Only take away was the price but I’m getting what I paid for which in my book is the best.

Fat shipping

I have been using Motul X-clean efe for a while now and I am very impressed with it. I have less oil consumption (less that a quarter in 7,000 mile oil change interval). Engine runs smoother and I have picked up around half mile per gallon. I'm sticking with Motul for my WRX.