Synthetic Oil Too Good ?

MidBlueK9

Dont Tread On Me
Hey guys and gals, I was at my BD dealer and asked the owner (who is an awesome mechanic) about using synthetic oil in the Dogs. He said the bearings in the motor (rod and main) are ball bearings and synthetic works too good. He said the balls will glide instaed of roll and that would wear flat spots on them. Anyone ever heard this. I use amsoil in everything I own but the bike until it get a few more miles:choppersmiley:
 

Raywood

The Pirate
Staff member
Calendar Participant
Troop Supporter
Can't believe you started "another" oil thread!!!

I changed mine to amsoil at 500 miles (my 03 Mastill also) and I have just over 56,000 miles on it. I change it about every 5000 miles. Guess I burned out my motor according to your mechanic!
S&S recommends synthetic and they make the motor your bike has.
HD uses syn in all there bikes now.


:flag: :flag: :flag:
 

REMorris

OK Rider Shakey
I am going to switch to Amsoil next oil change. I wanted to do it at 2500 miles, but the BDM dealer suggested that I give it another 2500 miles.

The thing about synthetics is they do not break down or wear out like regular oil. Thats the main difference. As far as being too slippery, no, not really possible.

Richard
 

kornfed

Kornfed
Hell, if a man doesent restart some threads we will eventually run out of shit to talk about. My opinion is run synthetic and make it Royal Purple. I dont know if its the best synthetic or not, but. I research everything for days on the computer for days before I buy anything and they say that stuff is ausome. HOT ROD Mag, did several test on it and confurmed everything that the company says it does.
I did learn one thing though. I put synthetic oil in a car with 100k on it. When I changed the plugs, there was oil on them. I asked my mechanic about it. He said the car had to many miles on it to start synthetic oil. He said the the cylinders had to much wear on them and the syn oil was squeezeing through.
 

seatmaker

Well-Known Member
I did learn one thing though. I put synthetic oil in a car with 100k on it. When I changed the plugs, there was oil on them. I asked my mechanic about it. He said the car had to many miles on it to start synthetic oil. He said the the cylinders had to much wear on them and the syn oil was squeezeing through.
Thanks for the heads up. Been putting synthetic in the Suburb with 150k on her hoping that she'll go to 300k, no fouled plugs thankfully but a good thing to take note on.
 

kornfed

Kornfed
My plugs never fouled eather, I just noticed the oil on them. The car ran fine. Check it next time you get a chance. I dont even know if the oil was kept up before I got the car.
 

LDO

The Cleaner
Troop Supporter
Hell, if a man doesent restart some threads we will eventually run out of shit to talk about.
I hear ya but how come we never restart some "Nice ass" or "hot chick on our bike" threads....:rolleyes:
 

seatmaker

Well-Known Member
Bigdogbro 2 has thousands of them, just can't can't seem to get him to share. And they are all taken out of his garage. Maybe he's hiding something :eek:
 

Raywood

The Pirate
Staff member
Calendar Participant
Troop Supporter
Can't believe you started "another" oil thread!!!



^:zzsorry: was bored and too lazy to do a search. Old lady is at work nobody here to > :SEX:
Just picking on you!! :D We will see you at the Post Falls Dealer party 29 May. The BD truck will be there. Knotso and I were there two years ago.
I stopped in there a couple times last year. Nice place and the cafe next door is great.

See ya,
Ray

:cheers: :cheers:
 

Raywood

The Pirate
Staff member
Calendar Participant
Troop Supporter
Hey Raywood,
When you changed over to syn did you drain the block as well?
No, you shouldn't touch the motor drain. I drain the tank then put the plug back in then fill the tank. I remove the filter then start the motor and run it and let the oil drain into the bucket till clean oil comes out. Then I put the filter back on.
I use a re-usable filter as many on here do. K&P re-usable filters.

:cheers:
 

Marco Polo

Newbie DELUXE
Hey guys and gals, I was at my BD dealer and asked the owner (who is an awesome mechanic) about using synthetic oil in the Dogs. He said the bearings in the motor (rod and main) are ball bearings and synthetic works too good. He said the balls will glide instaed of roll and that would wear flat spots on them. Anyone ever heard this. I use amsoil in everything I own but the bike until it get a few more miles:choppersmiley:
I've heard a lot of things in the debates over synthetic versus regular oils but this is a new one to me. If there wasn't enough friction (caused by contact) for the ball bearings to roll then how could they possibly be worn? Ask him to take a small scrap of wood, place it on a smooth flat surface and try to sand it down with one hand with nothing holding it in place and tell me if it moves before you can sand it down.

A lot of companies have done tons of real scientific research and testing on the benefits and comparison of the two. You can probably trust them as much as your mechanic on this one.
 
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