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Jethus, well seems like it's guaranteed my motor will seize, I'll try 0w30 for the winter. Going to rebuild another m50tu for boost, will try 0w20 in the old motor then, thanks.

Lol thanks for your responses guys, just needed the attention, /thread. Seriously though, what about oil film shear strength? Some 20wt oils did very well on this list: http://540ratblog.wordpress.com/2013/06/20/motor-oil-wear-test-ranking/ I'll hook up a oil pressure gauge next time I'm at...

Currently running 10w-60, still burning oil pretty fast. Want to try Amtecol 9000N 0w-20. My gearing is fairly short so I'm turning almost 4k rpm on the highway, barely getting 21mpg, curious to see how much 0w-20 will help. Was also thinking, if the rings are worn, shouldn't a thinner oil be...

thanks forest, im going back to synthetic then

so i shouldnt run it hard for 30 mins or until the engine is warmed up in about 10 mins? ok thanks steve,and racing o

ok thanks, time for some valvoline synthetic not street legal motor oil :]

thanks that was quick, im fine, id much rather have the straight up answer, so nothing bad will come from using synthetic in a car that is started once every other week? im just worried about the wear at startup, and yea i knew you can switch back and forth i always do it, not in too much of a...

i read somewhere that if you dont drive your car much you should use conventional because it leaves a layer of lube on the metal parts, so the next time you start up there wont be any grinding or wear, i only drive my mustang about once every other week and i drive it hard, off road use at the...