CKNSLS said:
Copperhead said:
Above advice all correct. Myself, I would quibble over the Dexos idea. There are many oils that EXCEED the Dexos specification. But there is nothing wrong with sticking to the standard. Use of a non Dexos "approved" oil is not grounds for denial of warranty. Interesting, to get the Dexos "approval", a company only has to meet the
minimum standard, pay a registration fee of $1000, and then pay $.36 for every gallon of oil they sell. Sounds like a racket to me. Either way, the Federal Trade Commission gives you some pointers that should make this clearer and you can have a peaceful night's rest......
http://www.consumer.ftc.gov/articles/01 ... aintenance
Why even go there? In the rare event of a motor failure - they are going to look at the oil. Just use Dexos and be done with it. Then if something happens it's a none issue.
Your right it is a racket...but it's not worth the fight when your motor melts.
Nothing wrong with sticking within the GM guidelines. Many folks do not have a renegade streak in them that allows them to tinker with what the OEM states is required. They will not get grief from me. I have been at things long enough that I view OEM recommendations as merely a guide and not written in stone. Case in point, my Detroit Series 60 12.7L engine in my semi. OEM recommended drain is 15,000 miles. I use a high quality oil, use bypass filtration, use higher end Donaldson Extended Life full flow filters, and have the engine on an oil sampling regimen. I take the oil to 50% longer than the OEM recommended drain interval. This engine has 126,000 miles on it with a 300,000 mile warranty. I deal with a Detroit authorized shop (Interstate Power) near me and they have no grief over what I am doing. Everything is documented and proven. Considering that engine (including core charge) is roughly the same cost as most folk's complete Siverado pickup, I have no problem doing this. Detroit also recommended, for that engine, a CI-4 rated oil. I use a CJ-4 rated oil which, on every level, is far superior to the CI-4 standard.
As for GM's Dexos gig, I have no problem using an oil that EXCEEDS the minimum standard for Dexos, using filters that EXCEED the minimum oil filter standards, yet both are not "certified". The oil will be sampled just like I do with my commercial truck and other equipment. My bases will all be covered. Good luck denying a warranty.
Oh, and I misspoke regarding the racket fees charged. Check this oil industry article out. The racket is worse than I thought....
http://www.jobbersworld.com/The%20Jobbe ... %20pdf.pdf
And one is not going to "melt" their engine unless they run out of oil or use vegetable oil. As long as one uses any name brand oil the meets the grade and viscosity requirements and meets the ILSAC GF-5 or API SN standard is not going to melt their engine. Quit being so hyperbolic.