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Old 04-23-2004, 06:28 AM   #37 (permalink)
FLSTFI Dave
IronButt
 
Join Date: Sep 2002
Location: East TN
Posts: 1,400
FLSTFI Dave
Arrow Syn 3

Syn 3 has a significant amount of group II base stock in it. The same base stock used in the regular HD 360 motor oil. Group I and group II are not synthetics, they are pure dino oil.

Only group IV and group V base stocks are synthetics.

Harley is 100% leagle in their advertisement of the syn 3. Mobil sued over this several years back and lost. Mobil wanted it to have to be 100% synthetic as that is what mobil one is.

The only way to know what is in an oil is to get the MSDS sheet for it. Read them and you will be very surprized. HD 360 and syn 3 are closer to the same than syn 3 is to mobil one. In other words syn 3 is as close to a dino as it is to a synthetic.

If I am going to spent the money for a synthetic, it will not be a blend. I use Amsoil in my diesel truck, and have since new. Truck has 97,000 miles on it. Last truck used mobil 1. Next oil change bike gets amsoil.
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03 FLSTFI Silver and Black, now has real fire radical paint set. 95", S&S 570G cams, V&H Big Shot Longs
07 883 low, wifes ride
06 Chevy crew cab 3500 duramax
80 Vette, ZZ4 small block, 355HP and 405 torque
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