This is for a 4 quart sump, I want to thicken up the Mobil 1 5w30 or 10w30 to a thick 30wt oil. Three options I'm thinking of,
1st- Mix 3 qts of xw-30 w/ Mobil 1 15w50
2nd- Mix 3 qts of xw-30w/ Mobil 1 5w-40
3rd- Mix 4 qts of xw-30 w/ some Valvoline synpower oil treatment.( 1oz/ qt or more?)
This is for my 91 pathfinder w/ 147K miles it runs smooth on the thicker 30 wt oil and I'm only using Mobil 1 cause of pepboys calendar coupons..thanks for any input
1st- Mix 3 qts of xw-30 w/ Mobil 1 15w50
2nd- Mix 3 qts of xw-30w/ Mobil 1 5w-40
3rd- Mix 4 qts of xw-30 w/ some Valvoline synpower oil treatment.( 1oz/ qt or more?)
This is for my 91 pathfinder w/ 147K miles it runs smooth on the thicker 30 wt oil and I'm only using Mobil 1 cause of pepboys calendar coupons..thanks for any input