Man,what a pain in the but,try finding 5w-20 synthetic blend,or a full syn. other than motorcraft where I live,it's darn near impossible. I went to three advanced autos,Two Autozones,Napa,One local shop,called three other Autozones and found Motorcraft syn. blend,mobil1 0w-20. No valvoline,no penn,no castrol other than Sears,and you can guess how high that was,and not even at walmart, so I told the wife if it's that hard tofind I better run what I can get my hands on,motorcraft. Now I can put this oil thing to rest.

 

Walmarts in my area carry Motorcraft 5W20 syn blend at $1.77 a quart. After checking the specs on it, I'm convinced it's a pretty fair oil at a fair price. I run Mobile 1 in the Olds.

 

Yea, I forget to mention that walmart has 5w-20 motorcraft blend,but thats all. I've looked at the specs also and it does seem pretty good,other than the flash point,which I beleive is 385.

 

https://www.f150online.com/forums/sh...highlight=0w20