I'm trying to decide which oil to run in my "03. I talked to a Harley tech and he suggested running the SAE60 with the extreme heat we get down here. I was considering the Amsoil 20-50 and running it in the tranny also. What do you guys think?

I'd go with the Amsoil!!!! :D

Good choice.

Valvoline 20-50 motorcycle oil(Synthetic) and sport trans in your primary.

Anyone tried the new Formula + trans fluid yet?

I'm an AMSOIL guy in both

Amsoil is good but i would stay with
sport trans in the primary

I use amzoil in both. Trans shifts smoother and is quieter.

I would never use motor oil in my trans.

If its a newer evo i'd use any good 20/50 dino or synthetic :tour

I use Royal Purple in the motor and trans, LOVE IT!
Robert
:banana :banana :banana :banana :banadanc :banana :banana :banana

By advise from my indie, I just switched from SYN-3 in motor and tranny, to rev tech 20-50 dino in motor and sport trans in tranny. So far engine isn't running hotter and tranny is not shifting any different(good ole' clunk is still there). His theory is even with Syn you should still change every 2500-3000, and if that's the case wht spend extra on the Syn.

Amsoil 20W50 in motor and Amsoil 75W90 gear lube in tranny

Clear as mud ha, Elden. Oil is realy a personal preference the only thing I would say is Synthetic is far more superior than dino. heres some interesting reading http://neptune.spacebears.com/cars/stories/oil-life.html

Pretty neat. I think this was the most important part:

* Engine wear actually decreases as oil ages. This has also been substantiated in testing conducted by Ford Motor Co. and ConocoPhillips, and reported in SAE Technical Paper 2003-01-3119. What this means is that compulsive oil changers are actually causing more engine wear than the people who let their engine's oil get some age on it.

* Topping up the crankcase is a critical component of extended oil change intervals, and frequent filter changes are most likely the key to extreme-length intervals. The cumulative effect of even minor top-ups, let alone a filter change, substantially increases the longevity of the oil.

Based on the results we've got here, we'd recommend 8,000 miles between oil changes on an engine that uses no oil at all, perhaps 10,000 miles on an engine that uses some oil, and 15,000 miles or beyond with a filter change every 5,000 miles. This, of course, isn't any kind of guarantee, and you must evaluate for yourself what your engine requires. One thing we're pretty sure about though: 3,000-mile intervals is a huge waste of resources.

The mileage recommendations are for a car, but you can get the idea.

Pretty neat. I think this was the most important part:

* Engine wear actually decreases as oil ages. This has also been substantiated in testing conducted by Ford Motor Co. and ConocoPhillips, and reported in SAE Technical Paper 2003-01-3119. What this means is that compulsive oil changers are actually causing more engine wear than the people who let their engine's oil get some age on it.

* Topping up the crankcase is a critical component of extended oil change intervals, and frequent filter changes are most likely the key to extreme-length intervals. The cumulative effect of even minor top-ups, let alone a filter change, substantially increases the longevity of the oil.

Based on the results we've got here, we'd recommend 8,000 miles between oil changes on an engine that uses no oil at all, perhaps 10,000 miles on an engine that uses some oil, and 15,000 miles or beyond with a filter change every 5,000 miles. This, of course, isn't any kind of guarantee, and you must evaluate for yourself what your engine requires. One thing we're pretty sure about though: 3,000-mile intervals is a huge waste of resources.

The mileage recommendations are for a car, but you can get the idea.


Perfectly sensible, keeping it clean and full. :tour

Pretty neat. I think this was the most important part:

* Engine wear actually decreases as oil ages. This has also been substantiated in testing conducted by Ford Motor Co. and ConocoPhillips, and reported in SAE Technical Paper 2003-01-3119. What this means is that compulsive oil changers are actually causing more engine wear than the people who let their engine's oil get some age on it.

* Topping up the crankcase is a critical component of extended oil change intervals, and frequent filter changes are most likely the key to extreme-length intervals. The cumulative effect of even minor top-ups, let alone a filter change, substantially increases the longevity of the oil.

Based on the results we've got here, we'd recommend 8,000 miles between oil changes on an engine that uses no oil at all, perhaps 10,000 miles on an engine that uses some oil, and 15,000 miles or beyond with a filter change every 5,000 miles. This, of course, isn't any kind of guarantee, and you must evaluate for yourself what your engine requires. One thing we're pretty sure about though: 3,000-mile intervals is a huge waste of resources.

The mileage recommendations are for a car, but you can get the idea.

link???


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http://neptune.spacebears.com/cars/stories/mobil1.html