Shell RGT 0w20 5.2k miles 6 months; 2012 Mazda 6 4-cyl 115k miles

[vetteryan]

Oil filter: Fram Ultra
Air filter: Fram Ultra

 

[nascarnation]

Awesome. And your Mazda thinks it a Hellcat powered Ram! That Shell GT is all about it.

 

[blufeb95]

Something seems off about the base number, I'm pretty sure that's higher than a virgin sample

 

[vetteryan]

Awesome. And your Mazda thinks it a Hellcat powered Ram! That Shell GT is all about it.

I think I got a few 5 qt containers almost free after rebate....now I am a pickup man.

 

[vetteryan]

Something seems off about the base number, I'm pretty sure that's higher than a virgin sample

I think you are right, I just looked up a couple VOA's of this oil, and the tbn is typically between 5.9-7.35 on the few I saw.

 

[JohnnyJohnson]

Awesome. And your Mazda thinks it a Hellcat powered Ram! That Shell GT is all about it.

Shell Rotella Gas Truck Full Synthetic SAE 5W-20 Motor Oil | The Petroleum Quality Institute of America

pqia.org

 

[vetteryan]

Wow, TBN is almost 9 from the factory according to that article. Thanks for posting.