Castrol 5W-40 Eurocar. I live in the northeast and park outside. Car has been solid and I've used this oil since I bought it. 65k miles later, I see no reason to make a change now.
Previous comments about mobil 1 are right it’s best for reliability - castrol are seen as high performance oils
For my Z with 210k miles i switched to the one your holding and it burns less. I get an extra 150 to 200 extra miles compared to mobile 1.
I always use full synthetic Mobil 1 5W-30
5W-30 Castrol Edge. FPRS uses it and has had very few failures on stock motor cars. I was also running it in my GR86, and Blackstone came back perfect on that car.
There was a dude on YouTube that did a test. Mobil 1 performed the best, followed very closely by Amazon basics
Man, just changed out the oil in my 2000 Crown Victoria Police interceptor yesterday with this. I HAVE USED THIS VERY OIL for close to 20 years. My shit runs as good as it has since I first drove it out of the Orange count sheriff's dept, Parole dept. auction lot. Never use anything else.
When it comes to brands most good brands work fine like Mobil 1, Castrol, Valvoline and so on. All these oils even including the cheaper amazon brand oils have been tested by the American petroleum institute and they have a stamp on every bottle.
I was using the OEM Castrol 5w40 and recently switched to Castrol European Formula 0w40. I found that I had the oil level drop a bit (oil burn perhaps) with the latter. For the current change I went back to OE Castrol and will see if things go back to no level drop.
i got a little valve clatter when i went to 0w40 on my next oil change i'll be using 5w40 (synthetic)
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