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Join Date: Nov 2007
Location: Chandler, Arizona
Oil is oil, and what you got will work fine. The lower end of a diesel engine is the same as a gasoline engine, just built a lot better. The reason I don't use Rotella, which I could actually get free at work, at least enough for the bikes, is it is not the weight I prefer. I live in Phoenix, AZ, and it gets HOT here, I mean 120 degrees hot. So I will only use 20w50. I mostly use Castrol GTX.
In your case however, if there is any doubt about how clean the engine is or isn't inside, I would use Walmart SuperTech oil, and change it about every 500 miles for the first couple thousand, to clean the engine out. I did this with my '85 Goldwing that someone "gave" me, and the oil was filthy, sort of like black paint. It also seemed thin. After 4 changes at 500 miles, the oil is gradually starting to stay clean longer and longer. I have already spent over $1000 and about 200 hours labor on this "free" bike getting it going and fixing it up, and am now beginning to believe it may be worth it. My first 500 mile trip it felt like a new bike, and ran like one too. I believe the engine is solid, and anything else can be fixed. I figure it has over 100,000 miles left in it, not bad for $1000, considering the sales tax on a new one here is about $2500.
I may always change the oil in this bike every 1000 miles, or close to it. It currently has 93,000 on it. I would rather have an engine full of clean cheap oil than expensive dirty oil any day, and ALL oil sold for cars meets the manufacturers specifications. Maybe not for 20,000 miles, but well past 1,000 miles
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