Thread: Synthetic Oils

What does everone use as far as oil goes and why?

Ive always been told that if you use non synthetic oils for a 50k miles or more in a car you cant go to full synthetic, but ive been reading up on this and i am seeing several different answers. all the sites from oil distributors obviously say use full synthetic, but im getting a 50/50 from non oil sites.

you can switch back and forth all you want. anyone that says otherwise is misinformed.

my opinion: oil is oil is oil. other peoples opinion: OMG ROYAL PURPLE, THEY USE IT IN RACE CARS AND THEY HAVE COMMERCIALS.

seriously, i put relabeled junk store brand oil in my car and it ran like a top.

i usually use mobil 1 synthetic, or atleast i like to. but ill use just about anything with a known name.

ya oil is oil...but ive noticed that my mobil 1 syntethic maintained its viscosity better than conventional valvoline.

no matter what oil i use, i always change it at 3000 miles so why waste my money on expensive oil that im just going to throw away?

Pfft...I gave up on Mobil...and I use Valvoline VR1 20-50 racing oil.

It wins.

I use valvoline or whatver else.

Just never pensoil, EVAR.

and a good filter helps.

I change it every 2k miles, so to me it dont matter.(i drive less than 7k a year)

Originally Posted by Bio248

you can switch back and forth all you want. anyone that says otherwise is misinformed.

my opinion: oil is oil is oil. other peoples opinion: OMG ROYAL PURPLE, THEY USE IT IN RACE CARS AND THEY HAVE COMMERCIALS.

seriously, i put relabeled junk store brand oil in my car and it ran like a top.

well unfortunately i do know for a fact working with racebikes and testing different oils on dynos just to sqeeze out every last bit of hp that certain oils are better than others. this is on very high compression motors. per my personal experience with dyno time on HIGH COMPRESSION RACEBIKES (13:1 for example) will yield .07 to .1 hp at the rear wheel and allows for a quicker revving motor. but once again this is on very high compression motors where every last bit of power is needed. i do infact use royal purple on my racebike, but i use non synthetic in everything else.

the biggest debate i found online was if you use non synthetic then the rings seat to a certain slipperyness (if thats even a word), then you add something more slippery then you get oil getting past the rings. i also drive roughly 1800 miles a month

I run GM's new Dexos oil. I work at a dealership so it's readily available to me.

Amsoil.

independent dyno tests, that hsv is gorgeous.
YouTube - Engine Oil Dyno Shootout on EVO
YouTube - Engine Oil Dyno Shootout HSV

kw to hp calculator if you need it
Convert kW to hp - Conversion of Measurement Units

We go 15k in our g6 and newer grand am with amsoil.

insert product placement { here }

lol, i kid

Im with Bio... Every 3K I change so whatever is good speaking of which gotta do that tonight