I finally found chevron supreme here in my town in n.c. the bad thing its that they only carry 10w30 and 10w40.I have a 1998 f150 4.6 that ford reccomends 5w20 so ,i would like to find 5w30.im just so exited becouse i read really good things about this oil here in bitog and the price they got is 1.24 a qrt which is way under the normal 1.98 for penn,valvoline and castrol(give or take a few cents)or should i just try 10w30 ,the coldest months are coming thats my only worry? comments please...... tks
