Synthetic Or Mineral Oil: What's Better For Your Motorcycle? | MC Garage

The best oil to use is the one you will use frequently or at least on the service intervals.

So in an application where there is no pressurized circulation from a pump and a filter - say in a rear end / differential full synthetic is superior.

But when there is a pump and the oil circulates and eventually passes through a filter a synthetic blend is superior because it can suspend particles (combustion by-products like carbon, wear items like small metal particles, even dirt, etc.) and carry them suspended in the oil until it passes through the filter medium and is caught.

Full synthetic oils do not do as good a job suspending particles so the abrasive particles end up dropping out and gunking up the lower areas where oil is present rather than being filtered.

So you're saying don't use synthetic oil on a street bike.

In a synthetic blend what are the ratios??
It could be 10% synthetic 90% mineral.
They don't put that on the bottle so you don't really know

I have a 1971 Honda CB175. Should I use synthetic in that?

i use 10w-40 MOTUL 100% Synthetic for my 2004 kawasaki 636

Whitch is better oil 20w50 or 10w40? Am in middle east and in summer it goes to 25 degree C.....

iirc ester is corrosive so they put "little" ester and marketing as group V
in modern engine oil whatever dino, vhvi, poa, ester what matter most is the additive how oil manufacture combine antiwear, antioxidant, detergent . friction modifier etc that one will protect ur engine
when the additive gone oil just lubricant like 5 decade ago
check Used oil analysis and share to other so everyone can learn from how long this engine oil last in this engine

Is it true that fully synthetic oil can save you a lot of gas

I use the used oil from my car… let it set for a month or two then slowly add until it starts changing color. Same deal I then use in my 1951 Chevy truck. Like I always reuse ATF and gear oil too reuse for machine and hydraulic oil after sitting for at least 3 months. No problems in over 50 years. What brand etc? Bought a bunch 24 (30 gal.) barrels of Kendall GT in the late sixties for a real deal.. that broken down it was 20 cents a qt. Or a $24 a barrel. Still have all the used oil in the used barrels… so maybe it could be refined into new oil… though Kendall is long out of business… probably got enough new to get me to 100 years old. So not worrying about needing to refine / recycle into new right now.

Moblie 1 4t racing 10w40

So dam helpful thanx bro 1 love az 1

BEL-RAY MC1 is the best 2 stroke oil on the US market today! US SUZUKI recommends this oil to minimize any oil related issues with YOUR new race bikes!

change oil is important what ever oil that you use,, he is right thats a big yes....

changing cheaper oil more frequently or use quality oil but with longer periods??? which is better? (i change it myself, so no extra expenses)

Been running Motul full syn in all my bikes since 2003.

Which is the best 10w40 oil would you recommended?
1. Shell advance ultra
2. ‌Motul 3100, 5100 or 7100
3. ‌Mobil1 4T race
4. ‌Castrol power 1 ultimate
5. ‌Liqui moly street race

Switched to mineral oil n i realised there's a metal thud noise whenever i slow down with engine break. Used synthetic ever since.

For my 88 Honda Goldwing Gl1500 mineral oil Delo400 15w40 work perfect, I tried synthetic oil, slip horribly my clutch, definitely motorcycle don’t like synthetic oil..

Personally I like to eat ester and pump ethyl.