What are your thoughts on Amsoil synthetic? A guy told me he was using it in his Viper and thought it was better than Mobil 1.
My thoughts are that it has worked quite well for me the last 30 years. I've been using Amsoil in my Viper for 53,000 miles (almost 55,000 on car). While I've always used oil analysis, I just recently sent a sample into Blackstone as that seems to be the company of choice here. The oil was one year old this October. The car was run for another 500 miles before storage in November, 2004. It was stored for the winter(never run), saw one track event this summer, couple of passes at the drag strip in St. Louis, 1 autocross, for a total of 9,945 miles on the oil of what I would call 'spirited' driving The results are in from Blackstone. They conclude: "We like the looks of this engine" & "Try 11,000 next oil"
Normally I change at 6,000 miles, but thought I'd go a whole year this time--including the winter storage season.
For those that may not know, Amsoil is Exxon/Mobils largest customer of synthetic PAO base stock........bigger than Mobil 1. It comes down to additives after that.
I've seen some BS tests trying to show Amsoil was the "best" oil.
I'm not saying Amsoil is bad. It just seems odd that they have this strange marketing and sales system.
Joe,
There is absolutely nothing strange about direct marketing. Didn't the Fuller brush man ever knock on your door back in the 50's?
Steve