The difference is the 20w 50 motorcycle oil was Amsoil's original version and the V-twin oil is the latest formulation that came out last April. We still have both types and they can be used in any 4 stroke motorcycles.msscull said:I was wondering what is the difference between the 20W50 Motorcycle Oil & the 20W50 V-Twin Oil.
I have a few quarts of the AMSOIL 20W50 V-Twin oil & want to know if it can be used in crankcase, primary & tranny?
Shawn
Yes Amsoil recommends it in all 3 holes just like Harley does and I have used it in my road king for the last couple of years in all 3 holes.msscull said:George,
Can the 20W50 V-Twin be used in the tranny & primary?
OK, I'm sort of confused? The oil I got from George a year or so ago was labeled 20-50 V-Twin oil. The oil I just got in Oct. was labeled " 20-50 motorcycle oil" specially for primary, trans, and chain lube. No mention of v-twin. Sounds the reverse of what you say above? Should I keep these two oils separate? I used the latest in the primary and trans and the "v-twin" for the chain so I did keep separate on this change.george douglas said:The difference is the 20w 50 motorcycle oil was Amsoil's original version and the V-twin oil is the latest formulation that came out last April. We still have both types and they can be used in any 4 stroke motorcycles.
You got me confused now. Look at the stock number on the back. It will read either MCV or AMV. In either case they both are recommended for all 3 holes. It isn't recommended to mix them, but they are compatible so if you did it shouldn't hurt anything. Hope this helps. If it doesn't give me a call and I can check your records to see what you bought on each order.simjue said:OK, I'm sort of confused? The oil I got from George a year or so ago was labeled 20-50 V-Twin oil. The oil I just got in Oct. was labeled " 20-50 motorcycle oil" specially for primary, trans, and chain lube. No mention of v-twin. Sounds the reverse of what you say above? Should I keep these two oils separate? I used the latest in the primary and trans and the "v-twin" for the chain so I did keep separate on this change.
The case which contained the 12 qts of v-twin labeled oil was AMV. The case containing the recent shipment labeled MCV contained the qts labeled synthetic motorcycle oil. I did not mix them, in various holes, but wonder if the new shipment is the "new oil'" or "older oil" Thanks.george douglas said:You got me confused now. Look at the stock number on the back. It will read either MCV or AMV. In either case they both are recommended for all 3 holes. It isn't recommended to mix them, but they are compatible so if you did it shouldn't hurt anything. Hope this helps. If it doesn't give me a call and I can check your records to see what you bought on each order.
MCV is the newest version and the one with the best rust protection package in the industry. Amsoil discovered some new additive technology rust inhibitors while making new marine grade products that don't compromise the antiwear chemistry. Rust inhibitors that are used by other oil companies can not be used, so to speak, at full strength due to competing with the antiwear properties in the oil and weakening them so oil companies have had to compromise in this area. This new additive chemistry will find it's way in all of Amsoil's oils as each type of oil is reformulated to meet the newest API spec changes.simjue said:The case which contained the 12 qts of v-twin labeled oil was AMV. The case containing the recent shipment labeled MCV contained the qts labeled synthetic motorcycle oil. I did not mix them, in various holes, but wonder if the new shipment is the "new oil'" or "older oil" Thanks.
That is a good read, thanks for posting the link.ahill said:I just seen this and found it very interesting! It is located on Amsoils Opening page! Some will claim that Amsoil information is 1 sided! Well, I think this speaks for itself!
Very cool, check it out! I think it covers, just about all the issues dealing with motor oil and what makes them work better then others!
http://www.amsoil.com/lit/g2156.pdf