[alkyhaul]

warranty

In the US, I know for a fact that GM cant tell you what brand of oil you can and cant run, they can only provide a minimum requirement specification, such as "oil must meet API cc/cd specification" and recommended grade for ambient temp in your area. Thanks to the Magnusson-Moss warranty act if the dealer requires you to use a consumable product like the factory brand oil to maintain your warranty the dealer must provide it to you free of cost....

But in Canada I know nothing. I would immediately install a bypass filter setup when I got it home and swap to Amsoil 100% synthetic oil, after the first oil change if it was mine. :gearjamin

 

[alkyhaul]

The bypass filter does a few things when installed properly and heres the basic rundown:
First: It installs a full flow filter in place of the original filter (which the OEMs will open up and bypass unfiltered oil to the engine when the oil pressure is too high, such as cold starts, the full flow doesnt rarely ever bypass) the full flow uses a better media to allow more flow of oil without "opening up" when the deltaP (or differential) is too high for an OEM.
Second: There is the actual "bypass" filter which is usually remote mounted and tapped into the pressure gallery and returns to the sump that has a very small micron rating to trap all the unwanted particulates that pass thru the normal filtration, and eventually pass into the "bypass" filter. That allows the flow thru the "tight" filter without starving full flow to the engine.
These setups are very effective at increasing engine service life because your oil is so much cleaner, and a byproduct of it is that your oil also lasts longer. It is an expensive initial investment, usually @ 250.00 for the kit plus installation. But it is well worth it for anyone expecting to keep their rig for a while.
Beers