LongToe114

I have a 2001 vette what should i use???

98pontiac

I use 5w-30 synthetic "royal purple" The only thing I like about royal purple is the added horsepower. Royal purple seems to sludge the engine up a little bit, and since its purple it never really looks "clean" its really preferance. As far as a clean engine inside, castrol oil will keep the oil crystal clean better than any other oil as far as my experience goes. I'm a mechanic, and change oil frequently. change your oil every 3000 and youll be fine.

98pontiac

I think the manufacter recommends mobil 1 5w30

TXZ28LS1

iTrader: (5)

ive ran castrol syntec 5W-40 for the last 3 years.. i plan on switching to syntec 5w-30.

01'SSLSX

^^^this is correct.

i always think its funny when people run different oil then what the car's owners manual tells u to. lol

some people must be smarter than the engineer's who built em i guess. lol

edit: im not saying u cant run different oil, just what u should run

ls1ya

iTrader: (2)

mobil 5w-30 syn with a half quart of lucas lucas syn heavy duty oil stabilizer for protection

ls1ya

iTrader: (2)

oh and its on sale for 4.99 a quart this week at o'reilly's can't beat 4.99/qt

02TransAm/Batmobile

iTrader: (32)

I never liked Mobil 1 5W30 so I purchased Royal Purple 5W30. I didn't really like it either. After some research and what people report after laboratory testing Mobil 5W30 is actually a 20 weight when the oil heats up. I'm running Castrol Syntec 0W30 and so far so good. I am also at 40 PSI at idle at operating temperature. Before I would always seem to hit jus' below the 40 dial with the other oils.

mtuggle86

iTrader: (7)

Ya those same engineers installed the little 7.625 10-bolt rear end in our cars. Knowing some of them would see Drag radials and track time. So please dont act like GMs engineering staff cant be second guessed.

BTW I use German Castrol it seems to be doing good for me so fare. I also noticed Ive had a slight bump in oil pressure at idle and a reduction in oil consumption since switching to it.

LS12Fast4U

iTrader: (1)

i run Mobil 1 10w30.

fucter

iTrader: (5)

usually mobil 1, but I run across amazing sales frequently, so I switch to other things.

also, Mobil 1 is recommend because GM has a stake in Mobil and because it makes people think 0o0o0oh it REQUIRES expensive synthetic, like I own a friggin lambo.

StreetSilverado

iTrader: (17)

I've been running Mobile 1 Synthetic 10w-30 during the Spring/Summer and then 5w-30 during the fall for cooler weather.

Z28SteveA4

iTrader: (16)

mobile 1 5w-30 always! Royal purple is over priced and to me doesnt do much of a difference then mobile 1 and like stated above, it is what GM says to run.

MR01Z28

I used to run mobil 1 and I think it was to thin. I switched to amsoil and it hold good oil about 50psi at idle warm and when i been running it hard it idles right at 40psi. I usally run either a mobil 1 filter or the ac delco if thst matters much lol

bobbyd

iTrader: (10)

penzoil platinu. currently running penzoil ultra 10w 30

DSkyles

iTrader: (1)

I get penzoil platinum free at my work and change my oil about every 1500 miles if that. Penzoil platinum is actually some really good stuff and the price is reasonable.

JFM-jr

iTrader: (23)

Valvoline VR1 , this is one of the most diverse topics on this forum.

Higgs Boson

iTrader: (3)

I've been running water for the last mile or so. Doing great so far!

Yahelou

iTrader: (23)

+1. good stuff and reasonable price.

mtuggle86

iTrader: (7)

I hear if you add some bleach It will even improve the performance of water used as motor oil :