Amsoil you wouldn't need and additive either,Or Mobil One.

gcsdls wrote on 05/15/12 at 13:25:43:



Here is the straight skinny on "holding up better", nobody runs a synthetic oil long enough in a motorcycle engine to use up all the additives in either Amisol or Rotella T6.

Nobody here but Bill really leaves oil in their bike for 2+ years at a lick with the standard motorcycle air and oil filtration systems in place.

I have worked my way up to "once a year" oil changes but it took me a while to do it and I modified my air filtration system to remove all the fine itty bitty dust particles so I could go for a whole year at a time.  

(dust in the air turns into the silica content in your oil)

Every year I dump out "still usable" oil just to get the silica build up out of there ....


=======================


Now I can answer which oil system does the best job.    


Amisol is too pricey and you can't justify using it economically without taking risks with extended oil change intervals.   Depends on how you buy it, but $12 a quart seems commonplace (especially when you factor in the shipping if you buy it on line).

Buying big blue gallon jugs of Rotella T6 at less than half the cost, I can cheerfully dump a sump a year, get all the silica out of the engine and KNOW I have an oil that I haven't nearly used up yet, that has a heat resistance temperature range that our Savage can't even reach and I know I can buy it anytime I want more at my local Walmart for $22 a gallon.


   


Unless you grew up around old two stroke snowmobiles or two stroke racing bikes you have never heard of Klotz.

Thats where Klotz comes in.

bill67 wrote on 05/15/12 at 16:23:13:


Yep, Wal Mart has every oil of consequence.    

But guess which one they don't have  (lemme give you a hint, it sounds a bit like Klutz but with more of an "O" sound.)

Oldfeller states
Quote:


Astute observation, there, oldfeller.

courious what years' oil war has the most posts..
seems we have on bout this time every year..

 
Verslagen collected data all summer long one hot summer a year or so ago, pausing on the interstate once and checking as soon as he got home again as part of an oil study between two oils.

Head never got over 360^o, sump ran about 250^o if my memory is correct.   (memory correction is desired, please)

Mind you, this was not idling in place, which can get things hot enough to discolor your pipes if allowed to go on for too long.

The point folks keep making is that the bike doesn't really need an oil cooler and if you can keep from idling in place for 15 minutes you don't even need fancy super temperature oil.

You do need a good oil with a lot of ZDDP to keep your flat tappets from degrading and your cam chain from stretching any faster than it already does .....

The least expensive JASO approved dino oil that meets these more realistic requirement is only $13 a gallon from Walmart.    





Note: this stuff is still pretty durn temperature stable and it can go through 500^o turbocharger exhaust bearings for at least 10,000 miles, conservatively.   This information provided from someone who was arguing against it at the time who had actually used it professionally as an over the road trucker.

It gets used by more people here on the list than any oil mentioned up to this point as it "gets the job done" and is quite reasonable in price with an entire gallon selling for what a quart of Amisol costs.