Quote:
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Originally Posted by brien4787
I just had my tire guy change my oil for me, since A) I had to go to my tire guy already, B)I was due , and C) too much going on to do anything right now.
When either I or my normal mechanic do my oil, we both use 20w-50. My tire guy put in 10w-30.
I have an m42 engine, with about 151k. I am concerned mainly because I am going on a long time next weekend. I am driving from Southern California to Tucson Arizon, about 470 miles each way.
What's the deal? Should I be okay?
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...change it.
I know.
I also have an M42, and took a 400 mile trip with 5-30(was just changed) and by the end of the trip my valves where making noise. Not sure how much of a difference it would make.....5-30 to 10-30.
Either way...watch out.
On another note i got a 4.10 diff so my RPms are up at 4 grand around 85...so 8 hours of that with 100 degrees and 5-30 lead to no oil to valves.
*Edit* just read dudeskys response..maybe it was the 5 w.