What Kind of Engine Oil to Use
Look for two things:
Your vehicle’s engine requires a special oil meeting
GM Standard GM4718M. Oils meeting this
standard may be identified as synthetic. However,
not all synthetic oils will meet this GM standard.
You should look for and use only an oil that meets
GM Standard GM4718M.
Notice: If you use oils that do not have the
GM4718M Standard designation, you can cause
engine damage not covered by your warranty.
• SAE 5W-30
As shown in the viscosity chart, SAE 5W-30 is best
for your vehicle.
These numbers on an oil container show its
viscosity, or thickness. Do not use other viscosity
oils such as SAE 20W-50.
Oils meeting these
requirements should also
have the starburst
symbol on the container.
This symbol indicates
that the oil has been
certified by the American
Petroleum Institute (API).
You should look for this on the oil container, and
use only those oils that are identified as meeting
GM Standard GM4718M and have the starburst symbol
on the front of the oil container.
I've used Mobil 1 5w30 with the applicable Mobil 1 filter from the first day I bought the car. No issues.I'm a new owner of a yellow 2005 gto and do I have to use synthetic oil or can I use regualr quaker state, castrol type oil and makesure to change every 3,000 miles? Thanks
Hmm I'm trying to remember If I ever seen this Purolator here in my city. I live in santa maria central coast cali and we have oreileys formanly kragens, autozone, and napa.I use whatever is on sale at the time for oil and I always use the Purolator filters because they are good quality and reasonable priced. Plus the gold serious ones have a ruff coating so they are easy to turn on and off by hand.
The LS2 are synthetic only per the owners manual and oil cap on the motor.
Do you really know 'countess people'that have had problems with Fram? I think it's one of those urban legends. I recall posting in a similar thread that I don't use Fram but that's because I've always heard not to. I've never heard a definitive explaination as to why, however. Is there really a reason other than 'everyone' has always said not to use them?The only filter I've ever ran into that I wouldn't even put on my riding lawn mower is a fram. They have got to be the worst filters in existence. I know countless people that have had major oil pressure problems with them.
I use Castrol Syntec in my 04!! I usually get 5,000 miles out of it. I like the K & N filters cause with the nut on the bottom it is easy on and easy off...:coolI'm a new owner of a yellow 2005 gto and do I have to use synthetic oil or can I use regular quaker state, castrol type oil and make sure to change every 3,000 miles? Thanks