Walmart doesnt seem to have 5w-30 and M1 advertises that the 0w-30 offers the same/better protection as the 5w-30.
you should be ok with the change.
Hi,
Just got back from Wally World. I was looking at all the motor oils, mainly the synthetics, and wanted to know if there are any problems with running 0w30 oil in my 99 T4R with 129,000?
Thanks,
Scott
I get Mobil1 in 5W-30 there all the time. I imagine they out of stock at the time you checked.
Been using Mobil 1's 0W30 synthetic (except for those two times when I had to use dino because I mistakenly thought I had some on hand) for about 90,000 miles at 5,000 intervals.
No problems. It goes in nice and smooth, smelling sweet and comes out all black and smelly.
Why 0W? Tahoe temperatures can drop to the 20's and the 0W helps flow on initial startup. Yeah there's a larger range (30 basically) than a 5W-30, but a 5000 interval should help deal with premature oil breakdown.
Pour point on M1 0w30 is -51C on M1 5w30 is -45C So since the HTHS on 5w30 is a bit higher I would stick with the 5w30 unless you live on the North Pole with Santa