I understand that, and I meant no disrespect toward Tiger81269. I have used Amsoil personally and have had good experiences with it. I currently use it in my Sportsman and my dirtbikes, but it gets irritating with some of the claims of greatness that have no facts to back them up. The Amsoil dealer websites are great for this.

I hope nobody took my post the wrong way as I wasn't implicating anyone. but just making a general statement.

 

I use 0w40 Mobil 1 in my atv's, you can pick it up at like autozone or napa etc. the nice thing about the Mobil 1 oil is that it is the best known oil available and it's even cheaper than the oil from polaris. I have never used amsoil but alot of racers use it so it must be pretty good, we always used Mobil 1 in our dirt track car. I even use regular Mobil drive clean oil in every other gas powered machine I own even my lawn mower and pressure washer.

 

Hey just to save ya some problems down the road, I just want to tell you that the Amsoil Severe Duty 0W-30 is good for 35,000 miles or one year. You just have to change your filter every 12,500 miles. If your going to run the oil for 35,000 miles on a change and change your filter every 12,500 miles I wouldn't buy a cheap filter. Amsoil recommends using their filters for extended drain.

 

I don't feel that I have been offended in anyway from anybody. Everyone has their own oppinions and the right to express them......... It's This Freedom that Men have Made the Ultimate Sacrifice to Give Us.

I'm not a dealer and I don't sell the stuff. I only know what I have expreienced and seen. I used to run Valvoline, Havoline, Quaker State and even Castol GTX at one time and none of them gave me any increase of any kind except in price I had to pay each time I bought a case. Plus I have seen the bearings and cylinder walls when I do winter inspections on my engines and You can tell the difference and measure the difference.

As far as the filter change interval. AMSOIL told me that as long as I changed the filter at the manufactures recomended interval (4000 miles in my case) I could get a year (or longer ... more on that later) and 75,000 miles which ever came first. I lease my F-150 and I normally only put on 14,000 miles a year (15,000 a year is my limit) so I'll never see the 35,000 or 75,000 miles.

For what it is worth:
About "the longer" statement. GM has told owners of certain cars with a "engine oil change light" that if they use a full synthetic oil do not be surprised if the light doesn't come on for over a year. Some reports have cars going 2 years before the light comes on and GM still says it is normal.

 

My father-in-law works for a railroad and they deadhead the engineers back from all over. They roll about 100,000 miles/year on dodge caravans. Anyway they only run Amsoil, then at 300,000 they trade them off. I think they do 25,000 mile changes.

I dont bother with the stuff as I dont have any reason to change oil at those long intervals. I buy Rotella-T 5-40 syn and run that in my 2002 FZ1, Prairie 650, Honda pressurewasher, lawnmower ect.

At $11/gallon I think its a good deal. The 15-40 dino is just $6/gallon. Im of the opinion of changing the oil more often than trying to use some voodo oil and extend the periods. .02c

 

I sent this question to the tech dept at Amsoil:

How does Amsoil 0w-40 Four Stroke Synthetic Motor Oil perform on Sequence VF,Sequence VI ASTM and Sequence IIIF engine tests? Were they run at triple length times?

Here's their answer:

The AMSOIL 0W-40 Formula Four Stroke (AFF) oil was developed predominantly for the special needs of power sports applications. The performance baseline for this product is API service classification SL with certain exceptions. Exceptions would be those areas not relevant to either the products’ intended application and/or the product itself. An example would be the Sequence VI evaluation you referred to in your e-mail. This sequence only relates to oils exhibiting SAE viscosity grades of 0W-20, 0W-30, 5W-20, 5W-30 and 10W-30. As noted, the AMSOIL AFF is an SAE 0W-40 fluid and hence evaluation under that sequence is inappropriate. Power sports applications also pose requirements that are not addressed within API service classification sequences. Clutch compatibility and gear functionality are two worth mentioning. The end result is minimum correlation between API sequence testing and complete power sports suitability. With this in mind, performing triple length sequence testing on a lubricant directed toward power sports applications would have little merit.

Not sure if we really learned anything..... Now what FloridaOleGuy? [img]i/expressions/face-icon-small-confused.gif[/img]

 

So does that mean a Polari makes less or more noise with 0-40 Amsoil? hehe

 

Not sure what it means, quite an ellusive paragraph...

Mine is actually very "quiet", compared to a friends stock '04 Vinson and another's stock '03 Foreman ES (now totaled). I would like a more aggressive exhaust note, but I burn enough fuel as it is, I don't need another reason to use more throttle.[img]i/expressions/face-icon-small-wink.gif[/img]