Does synthetic oil cause slipping clutch?

[Marcel VMX1700]

Hi all,

Since I use Motul 7100 4T full synthetic engine oil, the clutch slips at full acceleration. Did anyone experience this also?
The company where I bought the bike told me that this could occure, I ignored it because I didn't understand the reason why it should happen...the seller advised to use half synthetic oil....

I'm curious to read your experiences.....

 

[Jack Hammer]

Use diesel engine oil, like Rotella 15w40. Don't use full synth.

Ignore me. I just noticed you were talking about 2nd Gen. Then again, a wet clutch does not like friction modifiers, no matter what.

 

[Coastal Grey]

I use amsoil metric and have no issues whatsoever ever

 

[mnl119]

Hi all,

Since I use Motul 7100 4T full synthetic engine oil, the clutch slips at full acceleration. Did anyone experience this also?
The company where I bought the bike told me that this could occure, I ignored it because I didn't understand the reason why it should happen...the seller advised to use half synthetic oil....

I'm curious to read your experiences.....

Never had an issue using Mobil 1 20w50. I'm on my second gen 2 and have probably ridden a combined 20k miles on the two.

I also had two gen 1's using the same oil with no problems.

 

[Dansmaxresto]

I’ve used Mobil 1 since 1986 on all my bikes and have never had clutch slippage on any of them.

 

[santhyago]

Hi all,

Since I use Motul 7100 4T full synthetic engine oil, the clutch slips at full acceleration. Did anyone experience this also?
The company where I bought the bike told me that this could occure, I ignored it because I didn't understand the reason why it should happen...the seller advised to use half synthetic oil....

I'm curious to read your experiences.....

In my experience, even using double-d clutch spring, when I used the Motul 7100 full synthetic, I felt the clutch slip when I quickly accelerated.

 

[Jack Hammer]

I've always trusted Motul as a good MC oil. You guys are making me second quess. Your clutches good?

 

[santhyago]

I've always trusted Motul as a good MC oil. You guys are making me second quess. Your clutches good?

My clutches are new. They are Barnett and they have less than 3 thousand miles.

 

[Jack Hammer]

Well I think you should try diesel engine oil then to possibly eliminate your problem.

 

[santhyago]

Well I think you should try diesel engine oil then to possibly eliminate your problem.

I don't have this problem anymore. Since I started using Yamalube Semi Synthetic, everythins is ok.

 

[MadMaxMan]

Amsoil in everything I own. No problems.

 

[Marcel VMX1700]

Thanks guys, like jack wrote I always trusted Motul as a top-engine oil....
Now I have to find a new brand....enough suggestions in any case

 

[rebeltaz83]

Shell rotella T6 15w 40. Only time I had clutch slippage was after the nash flash…. Double D mod and that went away. I tried using Valvoline 10w 40 motorcycle oil, but it would get hung in gear and lock up. Only way I could get it to shift was to stop and cut the engine off. Went back to shell and no problems since then. 2018 with 12,000 miles. I’m on my 5th rear tire…. With no slipping.

 

[Jack Hammer]

I use the exact same oil. No problems.

 

[Fire-medic]

Amsoil in everything I own. No problems.

Are you in Palmyra/Macedon?

 

[TheFleshRocket]

I use Amsoil Dominator 15W50 (it's marketed as race oil but it works really well in motorcycle engine / transmissions--shifts nicely and seems to lubricate well as oil analyses come back good) in my gen2 with a Guru flash and the double D clutch mod. No slipping. Hell, the bike will loft the front tire a few inches under throttle only in first gear.

 

[MadMaxMan]

Are you in Palmyra/Macedon?

Yes, all my 63 years.