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I used to use Amsoil 20W50, but always had to order it. Now I just use Mobil 1 15W50 synthetic that can be purchased at any auto parts store, Walmart, K-Mart etc. That is especially convenient if you are on the road and find the bike a little low on oil. A good quality auto dino or synthetic oil works as well at motorcycle specific oils, and at a lower cost......according to Donny Petersen in American Iron magazine.
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2000 Fatboy
95" Big Bore
Head work by Short Block Charlie's
S&S 510G cams
V&H ProPipe HS
I use the HD SE sny3 in all holes. I live in Florida, it gets hot so I figure it might help cool the engine a little bit more than reg. Anyhow, HD's have been running on dino oil forever and work fine. I just see no downside to the syn3, the price isn't a big deal and on a road trip its at every single HD joint along the way. JMO
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2009 Street Glide ABS, Cruise yada yada...Pewter Denim, SE AC K&N insert, Rush 2", Power Commander V, and o so much more.
2008 Deluxe, all options, Pearl Blue.
Amsoil is pyramid sales, and I would NEVER buy it because of that. Besides, Mobil 1 V-Twin is just as good or better than Amsoil, and I don't have to deal with all the BS that you get with Amsoil.
Question................WHY doesn't Amsoil, if it's SO good, just sell it's oil at the local store like everyone else? Hmmmmm?
Hahah.... I thought I was the only one who does not like Amsoil. I hate their marketing BS. If they have a good product why they have to sell their products like "snake oil".
Mobile 1 15W-50 for cars. Cheaper than the V-twin stuff and just as good. You can get it anywhere.
Mobil agrees. Except they say don't put it in the primary/clutch. (I think it's because of the moly.) This is from their "Ask Mobil" site)
Question:
Using Mobil 1 15W-50 in Harley-Davidsons
Several independent tests have shown that Mobil 15W-50 is virtually similar to Mobil 1 V-Twin 20W-50 oil. Since Harleys utilize separate oil supplies for the primary and tranny, is there any valid reason not to use the 15W-50 in a Harley?
-- Dave Gartner, Goodyear, AZ
Answer:
As long as the primary and tranny are separate sumps and there is no concern for clutch performance, then Mobil 1 15W-50 can be used in a Harley.
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2009 FLHT ABS, Cruise, SE Touring Slip-ons, K&N Airbox, TTS
2005 BMW 1200GS
Synthetic - nope don't use the crap. Bike runs quieter (no top end noise) and cooler (as tested by myself with an infrared thermometer and candy thermometer, stuck in hole for oil temp).
Tried Syn 3, Amsoil, and last but not least Mobil. Serviced bike with mobil prior to trip to Fl. Pulled into Tallahassee begging them to get that chit out of my scoot. Had 450 miles on it and I thought it was gonna throw a rod.
Recorded ambient temp., cylinder head temp and oil temp for a year and five oil changes. Dino oil won. I service our bikes and have noticed less "fuzz" on the magnetic drain plug while using dino.
As a mech.eng with a background in gear drive components and self employed as such for the last 23 years, 85W140 gear oil in the tranny. HD Primary oil in the primary due to additives it contains. If you're gonna run motor oil in the primary at least run a few ounces of friction modifier.
