This might be redundant to most of us, but there are that many more folks who don't know about this...

Buyer BEWARE of some grades of Castrol and and Castrol Syntec Motor Oils!!! Castrol brags about surpassing the standards set by API, BUT some of their oils DO NOT have API Certification and WILL VOID your factory warranty if you tell the dealership you're using it.

In fact, there are brands of oil out on the market that DO NOT carry API Certification.

American Petrolium Institute(API) Certification is essential to keeping your vehicle under factory warranty. Read about it in your owner's manual. It WILL VOID your factory warranty if you use an oil without API Certification.

If you use a non-certfified oil, make sure when you take your car in for service that you tell them you use something else like Mobil 1, Pennzoil, etc that carry the certification.

To check to see if your motor oil is API Certified, look for one or both of these symbols on the front or back of the container...

 

i hear ya on that and that has been posted before, but thanks for the new post for new members!

on a side note: can i ask what is up with the face paint?? just wondering? later intamidat3r dude...

 

the handsom photo of SR. was already taken!

 

like this one..

 

Here is the list of GM4718M GM registered and approved lubricants. I try to stick to this list, especially if your car is supposed to run on full synthetics, like so many of today's cars are. Bottom of the page is the registered.standard blends, meeting the GM6094M requirements.

http://www.gm.com/corporate/responsi...ngine_oils.pdf

GM Approved Engine Oils - High Performance Engine Oil Specifications
GM4718M Registered Products
Revision Date: 1-June-2009
Product Name - SAE Viscosity Grades
76 Super Synthetic Motor Oil 5W-30, 10W-30
AC Delco Full Synthetic 5W-30
Castrol Edge 5W-30, 10W-30
Castrol SLX Professional 4718 5W-30
Chevron Supreme Synthetic 5W-30, 10W-30
Coastal High Performance Full Synthetic 5W-30
Kendall GT-1 Ultimate Synthetic Motor Oil 5W-30, 10W-30
Mobil 1 0W-20, 0W-30, 5W-30, 10W-30
Northland, Synergy Synthetic 5W-30
Pennzoil Platinum Full Synthetic 5W-30, 10W-30
Pinnacle National Synthetic 5W-30
Q HorsePower 5W-30, 10W-30
Service Pro Full Synthetic 5W-30
Texaco Havoline Synthetic 5 W-30, 10W-30
Valvoline SynPower 5W-30, 10W-30
Warren Full Synthetic 5W-30, 10W-30

Sticking with any of these and your running safe. Look for GM4718M on the label for full synthetics. These will NOT void your warranty.
BTW, we typically go 6,000 mi between oil changes. Have done that for 650,000 miles now between the 2 of us. ZERO problems.
__________________
Wayne

 

Good info, I was unaware, thanks!

I'm guessing he's in the army... The Kiss Army that is, or he's really into being a geisha girl.... Domo!

 

Castrol GTX conventional 5w-30 is API approved and on the GM Approved Oil list for 6094M and it says so on the bottle.

Been using it from Day 1 with an AC-Delco or Wix filter. No worries with 17K miles on a 2006.

 

The only oil I have ever used in my old Pontiac and current Monte is Vavoline Synthetic Moter oil. Thats what I will only use.

 

Mobil 1 for life! :P

Great information though. Will really help a lot of people who decide to DIY and go to pick up the cheapest stuff they can find...

 

I didn't see Royal Purple on the approved list, but everyone I've talked with says it's one of the highest quality oils you can get, and I've had no problems or leakage with it yet, so I'm pleased!

I've heard a few bad things about Castrol before, and nothing bad about Royal Purple, that was enough for me.