Whatever the mileage I put on my bike / car, I change the oil every year. On the bike, I won't go over 6000Km before changing oil. Also, 6000Km, is the intervall between revision ... so I ask the dealer to change the oil at the same time....Newdriver said:But I put over 15,000 miles a year!
And do you have one ounce of data other than Amsoil's propaganda to support your comment?Kevin said:I use Amsoil Motorcycle oil in my bike and just change out the filter on a regular basis. Automotive oils dont contain anti foaming agents. Motorcycle oils and race quality oils contain the anti foaming agents needed to keep your oil from foaming up at high rpms. Even your standard run of the mill stock Suzuki motorcylce grade oils have these anti foam agents. You should never run car oils in your bike.
This was good advice. It only costs $15 or $20 to do an oil analysis and it will tell you quite a bit about how your oil is holding out, as well as flag some possibile engine wear warning signs. You can't tell much about how your oil is doing by looking at it. Modern oils are designed to trap and suspend soot and other contaminants, so just because it looks dirty doesn't mean it isn't still good. The only way to really know is to do an oil analysis.If you want to try it, take a little bit out and get an oil analysis every 5k. I bet it would hold up longer than you think.
I thought sprint cars ran off of motorcycle engines? Awhile back I wanted to buy a CBR 600f3 that had a cracked crankcase and put a new engine in it. Problem I ran into....COULD NOT FIND A SINGLE DAMN 600CC IN-LINE 4 MOTORCYCLE ENGINE b/c of the popularity of sprint car races in NC. I would have been SOL had I bought that bike.sprint_9 said:I think rotella is a great oil to run, with all of its cleaning agents it really suits itself well for motocycle applications. Regardless of what oil you use I wouldnt go over 3000 miles per change of oil and filter, you can try it at 3000 drain the old oil into some sort of clear container and then put some new oil in another and see the difference, you can also feel the difference in the way the bike shifts with new vs. old oil.
Now if you want to talk about good oil additives use Energy Release, although I wouldnt use it in the bikes due to the wet clutchs, for cars it is great. We used it in our sprint car engine and noticed greatly reduced wear. After every 25 laps all of the valves would need adjustment, but once energy release was added adjustment was needed only every 100 or so laps, if not longer on some. And that was no standard application, that motor was 16000 dollars and turned 8300 rpms at the end of each straight.