I used to use Mobil One 15w50 but Mobil One V-Twin 20w50 is what I use now.Get it at Auto Zone for probably less than the HD semi-"synthetic". I change it and the filter about every 5K, and when I park it for winter which was today.
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2009 FLHT "Geezer" (on order)
2008 KLR 650 and 2005 Suzuki DR 650
2007 BMW K1200GT
1993 BMW R100R
Either brand will do just fine. I personally use Amsoil in all 3 holes. Syn is the way to go in an air cooled engine, IMHO. It runs cooler, can handle much higher temps for much longer periods of time, and if you happen to live in an area that gets winter temps, it doesn't turn into mud when it's below freezing outside, which allows the engine to turn over and start easier, and protects it by allowing the oil to flow better while warming up.
I have used Mobil 1 and Amsoil and personally can't tell the difference. I use Mobil 1 primarily because it's easier to find(most WalMarts and Autozones), and it's a little less than Amsoil. Clammy is right on about using synthetic in air cooled engines. Just my .02
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2006 Heritage Classic
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I thought the same thing pricewise but the mobil1 15w50 is 19 and some change dollors for 5qrt jug where harley wants 4.99 a qrt for there 360 stuff here .btw I get it at wallyworld for that price
Don't waste your money! Use HD 360, change enging every 2500 miles, primary and tranny every 5000 miles.
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Why would you want to change your oil every 2500 when you can easily go 5 or 6 thousand with a quality synthetic ?
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ORIGINAL: Geoseismic
Don't waste your money! Use HD 360, change engine every 2500 miles, primary and tranny every 5000 miles.
Because some people think that nothing new can be better, and that the manufacturer's self labeled product is always the best choice.
If you're gonna run anything less than full synthetic, use a quality dino diesel oil such as Chevron Delo 400, rather than wasting money on the Harley Koolaid. It's far better oil. Run each for 3K and send a sample of each in for a lab analisys.
I personally prefer Mobil1 15W-50, for the cold startup advantages it offers over 20W-50, because my bike never gets pput away for the winter. The coldest I've started it yet was 29 degrees last week, and no problems yet.
Mobil1 and Amsoil are both great oils. If I was running 20W-50, I'd find an Amsoil dealer. I've seen pretty good evidence that it's a slightly better oil than the M1 20W-50. I probably will run it next spring and summer, as I'm sure my Deuce will get far more than 5 or 6 K through the warm season.
synthetic oil choice
85 FXST Belts are for Pants...If it said custom when you bought it..it ain't.
