The Great Oil Debate
The difference is the oil change intervals can be extended over natural oils. Even natural oils can go longer than the old "3,000/3month" ad campaign. That was a great ad campaign, and it had it's day when it was true and oils were of a straight weight and had no aditives for detergents or friction. But these days of multi-weight, detergent laced, friction-reducing, shear-stability oil, you can easily extend your change interval. Even in air/oil-cooled engines. Now, I do send an oil sample once a year to www.blackstone-labs.com and they test the oil that comes out of your engine and breaks it down to see what is going on and if it is still within protection limits. Vehicle manufacturers have slowly been upping the change intervals over the last few years. My recent Honda was 8,000 miles on natural oil. Wife's BMW was 15,000 on full synthetics. It is up to the owner's of course, but you can go beyond what most MoCo's say safely
I will not disagree with you but I will say this. Syn3 that was in my bike during a hot summer only had 2500 miles on it. It had broken down to the point it was black and watery. The way it ran off the dip stick didnt even remind me of oil. For me if the oil brakes down that bad I will not use it. Syn3 will not go in my engine ever again. Total synthetic oil can pull its self back together and give better protection from what I experienced. Syn3 I dont trust any longer.
pop1-Thinking grandpaw smarter, how old are you? you will see the light one day old dude. I will test the oil often and i don't think it will BURN UP and if it does i get a new one. I love the "do what i do or it will grenade" crowd and the "I am a cheap skate and you are wasting your money" people. I just would like to see if it will make a year before it breaks down i will never make 35k. I don't keep vehicles long but if i can get a year between oil changes in my truck i will be happy. I am not trying to sell you or anybody else on amsoil or any type of synthetic oil. Use what makes you feel good but i will trust what i see before i listen to old people. Being old don't make you smart, it just makes you old.
I apologize for beating a dead horse. I am a new Harley owner and have one question. I have read hundreds of threads regarding how great Amsoil is. My question is if it is so so great, why is it so difficult to buy. Why is it not sold everywhere like other great oils. I have been a Corvette owner for ten years and using Mobile1 and never heard of Amsoil. Don't get me wrong, I don't disagree. I just findit odd.
Here is a list of good choices. Pick the one which is least expensive and most accessible:
Mobil 1 15w50 or 20w50 VT
Royal Purple 20w50 or MaxClycle 20w50
Redline 20w50 or 20w60
Amsoil 20w50
Note: In practical terms, motorcycle-specific oils are no better than their much-cheaper "car oil" counterparts.
http://www.sportrider.com/tech/146_0310_oil/
The Best of Harley-Davidson for Lifelong Riders








