[dragman64]

What kind of oil is everyone using?

Whats the best non-synthetic oil?
I have tried Havoline and Castrol (whats in the car now) and both seem to get kinda runny after a while. Both were 10w-30.

 

[89 coupe]

I use Mobile 1 synthetic in everything and I mean everything!

 

[Nastystang]

I was running Mobil 1 in everything but it got just to expsensive, so I am now back to my old favorite, Texaco Havoline. I run 5W30 in all 3 of my cars, I figured at $4.80 x 8 just to change oil in the mustang using Mobil 1 was getting out of hand, that same $40 lets me change oil in all 3 of my rigs and get change back.

 

[67stang]

Mobil 1 in the SVO & Porsche. Whatever is on sale in the truck & jeep as they get a change about 2000 miles. Mobil 1 in all the auto trannies. Castrol 20/50 in the race car. Not too advisable to use a synthetic on nitrous.

 

[dragman64]

Why not synthetic with nitrous?

 

[mach1deamon]

i have always used castrol gtx 10w40, no complaints here.

 

[Just Strokin]

never had any problems with Vavoline in my race motors. Old 351c never used a drop with 20w50.

Older personal cars, Wal Mart brand. Seems to run good in the motors. Plan on trying the Wal Mart diesel oil in my PSD on the next oil change.

 

[67stang]

Something about synthetic oil & the blue bottle... if you don't have a near perfect ring seal or good oil control, it just kills plugs. We were playing with a BBC pick up last year, ran 9.90's & needed a oil change. Put in Mobil 1 & started killing plugs. Changed everything, fuel, plugs, timing, nitrous.. nothing. Went & changed back to Castrol... 9.87 all in the same day.