Ive got a 1998 S10 2.2L and I have noticed the valve train is louder on start up(cold drive) and it sets for about 20 mins then restart to it gets warm with Mobil 1 Extended Performance 5w30 compared to the other oils I used when I got the truck they had 5w30 castrol gtx no noise at all then I put havoline ds 5w30, royal purple 5w30 castrol syntec 5w30 and right before using mobil 1 I ran pennzoil plat. 5w30 for 3 oil changes and Ive noticed more noise with the mobil than any other oil
Im thinking about just switching it back to castrol gtx if its gonna run quiter
Im thinking about just switching it back to castrol gtx if its gonna run quiter