Members who have donated towards server costs
Join Date: Nov 2007
Location: Chandler, Arizona
I overlooked the word synthetic in earlier posts. I agree synthetic is better, especially if you leave it in for a long time. I use a lot of plain old SuperTech 20w50 in my bikes, but change it every 1000 miles, mostly because I like clean oil in my engine. The local Cycle Gear is selling Mobil 1 synthetic motorcycle oil for $13 a qt. That's $52 worth of oil to do one oil change. I would have to leave it in there a long long time. A lot longer than I would ever leave oil in an engine, any engine. I have never run any engine, car or bike, more than 3,000 miles without changing the oil in my life, and never will. I did drive 3200 miles up to Portland, OR and back last year, but changed the oil the day after I got back, and that was all highway miles. Gear oil is different, it does not get contaminated by combustion gases like engine oil does.
This does not apply to bikes, but gear oil in Positraction rear ends, like I'm putting in my truck, does get contaminated by clutch wear.
I have no idea who makes Kawasaki's or SuperTech's oil, but it has probably changed many times. Kawasaki oil does meet their warranty, and the first bottle I bought was while the bike was still under warranty.
Most brands of oil are not made by the company that sells it. There are actually only 2 companies in the U.S. that refine the base stocks that motor oil is made from. The same thing applies to filters. As far as I can find, there are only 4 manufacturers of oil filters in the U.S., unfortunately Fram is one of them. So not only are their filters no good, but neither are any other brands of filters that are made by them. They do not make SuperTech filters, and they do not make Emgo, which is what I usually use on bikes. I use only NAPA or WIX filters on cars, both made by WIX. We use only WIX at work, and buy them by the truckload. They can be hard to find in stores, as they are a fleet brand. But the NAPA filters are the same thing, as are a few other brands.
I am a motorcyclist, NOT a biker.
1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike