All owner's manuals (as far as I know) say to use "API-rated oils" with a picture of the API symbol. Given that, how fast would manufacturers void your warranty if they learned you're ignoring the manual and using Amsoil or Red Line Oil?
As quickly as Toyota said, "No, we're not fixing your sludged engine" to Sienna owners and then handed them bills for ~5000 dollars.
And yes, I know Toyota later back-pedaled and agreed to fix engines, but how does that help people who *already* spent the money? It doesn't. They were screwed up the xxx by Toyota's refusal to fix their engines.
Anyway, the Toyota situation shows how easily manufacturers will say, "No your warranty is void." Using a non-API-rated oil just gives them an excuse to screw you.
That said, that's why I'm only using the XL-7500 API-certified oils in my Insight. I would void my warranty if I used any other Amsoil or Red Line product, and I don't want to give Honda an excuse to refuse to fix my engine if it dies.
Troy
I removed the cuss word with xxx's. please refrain from this, thks b
[ May 24, 2003, 08:21 AM: Message edited by: BOBISTHEOILGUY ]