Engine oil Castrol or AMSOIL

Send your used oil to Blackstone or Amsoil for analysis and all of your questions about oil will be answered.

The best all rounder motor oils currently in the US are Pennzoil Ultra Platinum and Amsoil Signature, the latter you can run for at least 20k normal service or 15k extreme service.

I got better results from signature 5w30 at 11,200 mi than I did from Motorcraft “full synthetic(lies) at 4300mi. So I change my amsoil at 8-10k and my Pennzoil ultra platinum at 7500.

I like amsoil 5w-30 and do a liquimoly engine flush with every oil change.

On a new car, I change at 750, then again at 3000, and after that I do my regular once per year or 25,000 miles, whichever comes first, as stated on Amsoil Signature. I've been using this oil for decades in cars, trucks, and tractors. It's incredibly good oil.

I put some Castrol 0w20, no issues.

I do 3k with Amsoil SS as well. Blackstone analyses of TBN show I could easily do 5,000k.

Castrol mangnetec gave me good performance but in city conditions it gave inconsistent fuel economies for me and under normal cruising speed 80-90 it performed really good. But for me it felt like reaching higher speeds above 100 felt slower compared to shell. Initial pick up of my car felt higher with this oil.

Daca e motor de la VW atunci recomandarile mele ar fi Liquimoly Longlife III, Motul 8100 X-Clean+, Mobil 1 ESP.

Reprezentantele folosesc in general Castrol Edge LL. Dar eu nu prea sunt impacat cu brand-ul asta.

One time I had the oil bug bite (keera) and I decided to get the best oil. Castrol (I don't remember the number) but it was 340 AED for a gallon. I poured it into the engine and it felt good. That weekend took it for a desert drive and during one of the breaks, the entire oil just leaked out of the main seal. The oil was so good that the engine didn't have the tolerances to hold it back.