maniek1300
Member
Is it true?.
I found this on the forum HD.
"
I want to use synthetic in my bike, but a service manager told me not to. His reasoning was HD uses roller bearing on all its rotating surfaces except on one of the cam supports. He said of you use synthetic, the rollers tend not to roll because of the synthetic being so slick and over time a flat spot can occur. He also said roller bearings need some friction for them to roll that is why you need a petroleum base produce. Synthetics are very good and the engine will probably last a long time, but if you ever went back to petroleum base, the flat spotting will give you problems. It cost more for synthetic and you need to change the oil at the same interval. So why use synthetic.
"
I found this on the forum HD.
"
I want to use synthetic in my bike, but a service manager told me not to. His reasoning was HD uses roller bearing on all its rotating surfaces except on one of the cam supports. He said of you use synthetic, the rollers tend not to roll because of the synthetic being so slick and over time a flat spot can occur. He also said roller bearings need some friction for them to roll that is why you need a petroleum base produce. Synthetics are very good and the engine will probably last a long time, but if you ever went back to petroleum base, the flat spotting will give you problems. It cost more for synthetic and you need to change the oil at the same interval. So why use synthetic.
"