01riceeater

iTrader: (4)

Hey guys its been a little while since my last oil change, and i think i put 10W-30 in it then, but i just bought 5w-30 today since thats what the manual says. Its all Mobil 1, so im just wondering which would be better before i change it tomorrow. Sorry for the noob question, just dont wanna put something too thin in it?

djfury05

iTrader: (30)

where are you from first?

01riceeater

iTrader: (4)

60-80 degree Florida!

LS1_Fonzie

iTrader: (4)

I put 10w-30 in my 98 z28, a buddy of mine uses 5w-30 in his 02 z28. Neither one of us has had problems with our cars. You should be fine with either one.

TXZ28LS1

iTrader: (5)

im running castrol syntec 5w-40. really good stuff!!

2001NBMZ28

5 or 10W-30 is fine, hopefully we'll never see below 0 temps.

01riceeater

iTrader: (4)

Amen to that! If that ever happened then whats the point of living here?

LS1crazy01

iTrader: (14)

Due a search on german castrol 0-30. It might help you out.

ICEMAN 31

I run and always run, straight 30. 0w - 30 is the best for the LS1. Go to your valvoline and they can order it. Some auto zones carry it. You can also order a crate straight from germany of it at ws6store.com. Love it and never looked back

HDNVALLEY

I doubt your car will know the difference. 5W30 has a little better cold flow when you start, but in Florida it won't make much difference.