[carguy1985]

Hey, i been using 10-40 on my car for its oil changes.. i just noticed actually it says 5-20 on cap, so i will start using that now, cuz my oil change is within like 400miles. But i just wanted to know dosent that seem a little thin???
iwas thinking moble 1 full synthetic...

but i was just curious to the thickness of the oil

maybe i should go with 5-30?
my car has almost 40K (38K)

let me know
thanks