not as much the cost.. think it has more to do with the 150.000 mile oil change intervals diesel use and a favorit is rotella ..no oil is tested more then oil in diesel long haul trucking outfits that use oil cooled turbo motors...look amsoil is good just like the other top five oil makers out there... weather you ride 3000 miles a year or 10,000 miles a year...id rather change oil twice or three times a year on a bike them worry about going 10.000 miles and getting my moneys worth out of amsoil ... somehow running dirty oil with clutch plate wear going through my motor dont interest me...yugo over mercedes..thats a marketing ploy they teach.and probably a little insulting to people your trying to win over...im a member of atleast 7 motorcycle forum and every forum had a amsoil dealer stop buy at one time or another try making a sales pitch then they get run off because know one falled for the sales pitch thousands and thousands of bikers and motor builders and your smart and everyone else has no clue...i understand your trying to make a living bob...but tricky sayings and bar grafts never closed a deal
Lets keep the record straight here..
No trucking outfit goes 150,000 miles on Rotella, Longest drain intervals are 50,000 (Mercedes Class 8) and must be on a Synthetic
As for me, I have over 35 years mechanical background. During the early days of my career, I realized the oil is the Lifeblood of your engine and the filter is the Kidney that keeps it clean. Since then, I have always promoted using nothing but the very best if you want the most out of what you have invested hard earned money for.
Reasonable results can be had by using a good petroleum oil and a good filter. Superior results can be had by using a Premium Synthetic and a Premium Filter.
I don't "worry" about 10,000 on a drain interval as I have verified it with analysis. So there is no "Dirty" oil.
I don't use "Marketing Ploys" the Yugo/Mercedes is meant as some people want to buy a better vehicle, that is why you bought a KTM I assume, and some people don't and will buy those Korean Copy Cats. AMSOIL is the largest manufacturer of Synthetic MotorCycle oil and a very close #2 in Automotive. You always have your bad apples in no matter what your field is. If I was just a "Hit and Run" AMSOIL Dealer, I wouldn't have been in this for 25 years and invested all the money I have to learn about oils and filtration. If we were those guys, we wouldn't be a Site Sponsor.
I personally am an active member of over 30 MotorCycle Forums so maybe we have crossed paths.
As far as "Bar Graphs"... We use ASTM Testing that is both performed by AMSOIL and 3 of the Top Independent Testing Facilities in the US. At least one of them is a Non-Profit. They utilize ASTM and SAE Tests for a reason. They can be duplicated precisely every single time by anyone who follows the outlined procedures.
After that, AMSOIL tests their products in real life using control vehicles and circumstances.