Starting My Oil Change Projects>Here Is the Cost Of PF35L's & Mobil1 15W-50 Synthetic

[Mark G.]

Re: Starting My Oil Change Projects>Here Is the Cost Of PF35L's & Mobil1 15W-50 Synth

That's what I use along with a bottle of zddp plus. Walmart by me has 5 quart jugs of mobile 1 for $22.88

[Duke W.]

Re: Starting My Oil Change Projects>Here Is the Cost Of PF35L's & Mobil1 15W-50 Synth

If you're using an engine oil with at least 1100 ppm P you don't need a "ZDDP additive" or any other snake oil.

[Larry E.]

Re: Starting My Oil Change Projects>Here Is the Cost Of PF35L's & Mobil1 15W-50 Synth

Question for Duke: One of my other cars for the oil to be changed is a 94 Camaro LT1. (Same engine in a Vette)
Should I stay with the 15W-50 Mobile 1 or should I use the 10W-30 Mobile 1? Does it make a difference? Larry
P.S. I believe this engine came with roller lifters

[Michael W.]

Re: Starting My Oil Change Projects>Here Is the Cost Of PF35L's & Mobil1 15W-50 Synth

Question for Duke: One of my other cars for the oil to be changed is a 94 Camaro LT1. (Same engine in a Vette)
Should I stay with the 15W-50 Mobile 1 or should I use the 10W-30 Mobile 1? Does it make a difference? Larry
P.S. I believe this engine came with roller lifters

Which year Corvette and which LT1 engine are you referring to?

[Mark E.]

Re: Starting My Oil Change Projects>Here Is the Cost Of PF35L's & Mobil1 15W-50 Synth

I believe all LT-1 engines from the '90s have roller cams.

[Duke W.]

Re: Starting My Oil Change Projects>Here Is the Cost Of PF35L's & Mobil1 15W-50 Synth

If it's a roller cam you can use any S or C-category oil... doesn't make any difference. Appropriate viscosities for the range of cold start temperatures are in the owner's manual. If you drive it less than a few thousand miles every year or two and change the oil at least every couple of years there's no advantage to using a "synthetic" oil.

[Keith B.]

Re: Starting My Oil Change Projects>Here Is the Cost Of PF35L's & Mobil1 15W-50 Synth

starting in 87 all GM SB got them