Why not to run synthetic oil, opinions : V-Twin Forum: Harley Davidson Forums

angleflights · 06-13-2009, 10:36 AM

I have heard some say its bad for your bike, looking for opinions and proof "motor pics."

This should be iinteresting.

trooper113 · 06-13-2009, 11:16 AM

I can't imagine any way that any synthetic or dino oil that meets spec is "bad for your bike." Makes no sense.

facn8me · 06-13-2009, 11:50 AM

10000 posts on dino vs synthetic. Short version if someone gives you advice that synthetic oil will hurt your bike STOP listening to them. Even hd sells a synthetic blend. You can read for day's if you just use the "search function"

Highwayman · 06-13-2009, 12:37 PM

I switched from dino 600 miles ago. I cant wait for the 5000 miles to be over so I can switch back.

My oil temp went up 20-25 degrees. This alone will cause me to switch back.

The tranny is quieter, so It can stay in there.

Faast Ed · 06-13-2009, 12:54 PM

Quote:

I cant wait for the 5000 miles to be over so I can switch back.

No one told you that you have to wait. Change it now if it is so horrible.
Filter is still clean, so you can limit your loss by keeping your filter.

Myself, will stay with syn.

I find that people who run oil temp gauges tend to worry too much.
If your motor is too hot, it will tell you.
Too many false readings out there on many of these oil temp gauges, and too many other variables alter the temp readings.

rob71458 · 06-13-2009, 01:00 PM

I can't imagine an engine running hotter from running synthetic oil. Makes no sense.

trooper113 · 06-13-2009, 02:14 PM

Quote:

Originally Posted by rob71458

I can't imagine an engine running hotter from running synthetic oil. Makes no sense.

While I won't argue with a guy who says his bike runs hotter with syn than with dino, I don't see how that's possible.

09nitetrain · 06-13-2009, 02:28 PM

i think mine runs about the same the same temp, maybe a few degrees cooler

strokerjlk · 06-13-2009, 02:30 PM

Quote:

Originally Posted by trooper113

While I won't argue with a guy who says his bike runs hotter with syn than with dino, I don't see how that's possible.

could be that....the temp. is starting to rise all over this great country we live in. summer is here

gdkenoyer · 06-13-2009, 03:34 PM

loath as I am to encourage yet another oil string

Quote:

Originally Posted by strokerjlk

...the temp. is starting to rise all over this great country we live in

...Global Warming, eh?

fatty239 · 06-13-2009, 03:44 PM

Quote:

Originally Posted by Highwayman

I switched from dino 600 miles ago. I cant wait for the 5000 miles to be over so I can switch back.

My oil temp went up 20-25 degrees. This alone will cause me to switch back.

The tranny is quieter, so It can stay in there.

There has to be other factors involved. It's not the syn oil.

Geezer-Glide · 06-13-2009, 03:59 PM

Quote:

Originally Posted by rob71458

I can't imagine an engine running hotter from running synthetic oil. Makes no sense.

Quote:

Originally Posted by trooper113

While I won't argue with a guy who says his bike runs hotter with syn than with dino, I don't see how that's possible.

Your motor does NOT run hotter. It gives OFF more heat when running synthetic. THATS why it FEELS hotter. But in reality, your internal temps are cooler.

nixdad · 06-13-2009, 04:46 PM

Quote:

Originally Posted by Faast Ed

If your motor is too hot, it will tell you.

Just curious. If your motor does get too hot, what will happen? I run Amsoil, so I don't have to worry about it, I hope. But I do live in Arizona...

Faast Ed · 06-13-2009, 05:06 PM

Quote:

Originally Posted by nixdad

Just curious. If your motor does get too hot, what will happen? I run Amsoil, so I don't have to worry about it, I hope. But I do live in Arizona...

Noisier, weaker, sometimes more detonation.

Something you just feel about it. If it happens, you'll know.

Of course, as you said - you run Amsoil so it will never happen to you.

FX-Rider · 06-13-2009, 05:48 PM

They say the bearings will skate with that slick stuff