Originally Posted by StevieC
Originally Posted by demarpaint
Originally Posted by StevieC
I'm sure they would have done a 15K mile towing test had they known that M1 was going to do 10K miles.
Heck we might even see this now that it's out. I'm sure they follow what M1 is doing considering they buy from them...
Maybe they did and they weren't happy with the outcome.......
Proof for that speculation?
We don't see them back peddling from their years of 25K mile claims... or even the 15K mile severe duty claims.
Amsoil has back peddled somewhat on their mileage claims. Nothing wrong with them changing their recommendations, as they have done their testing and as the engines today are getting harder on the oil, Amsoil has tweaked and adjusted their mileage claims.
Back when the Signature Series was first introduced to the market, Amsoil had the oil service life for Signature Series at 35,000 miles. We were Preferred Customers, and I thought that was crazy long intervals. Some engines can do it, others can't. Amsoil did not have the 700 hour drain intervals at that time either. That came out later. I think Amsoil realized that it was too long in some cases.