Rotella t1 straight grade

Brad William /

Sep 21, 2021 07:22PM

How about another oil thread? Everyone drink up, open the windows, and piss off the neighbors.

Puch maxi. Stock clutch.

Switched from type F fluid to rotella t1 straight 30wt this summer and kinda like the grabbier clutch and extra smooveness (higher vis than type F seems to make the old gears mesh a little more happily). Reportedly...Rotella being a diesel formulation it lacks the "friction modifiers" anathema to wet clutch use. Here-say. Surely.

Draining it I think it looks dirtier than the used type F. And then i wonder. Could rotella be less friendly to the clutch pad composition? Who knows? I often wonder if anything at all out there that isn't specifically labelled "for wet clutch use" risks fkkng up the pads prematurely. But I have a few gallons of t1 laying about. And it's a moped.

I'll never learn. (edited)

Re: Rotella t1 straight grade

Graham Motzing /

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grahammotzing

Sep 21, 2021 07:38PM

I've been running it in everything for years. All my 2 stroke dirt bikes and mopeds get the 15w40 and all my 4 strokes get 5w40 t6 synthetic. The only bike that gets something different is the za that I put 10w30 Valvoline motorcycle formulation in, that's got the wet clutch additive and it helps the 1-2 shift.

Re: Rotella t1 straight grade

P D /

pdcomm

Sep 22, 2021 09:42AM

"diesel formulation it lacks the "friction modifiers" anathema to wet clutch use. Here-say. Surely."

I've been running diesel in my FA50 for a few years after trying about every other type oil . I'm not going back . ;)

And , I've never changed the clutch or it's pads .

Could be that the diesel is cleaning your transmission better than the type F ?

Re: Rotella t1 straight grade

todd amundson /

nudebowl

Sep 22, 2021 10:55AM

Redline MTL

Give it a try

Re: Rotella t1 straight grade

Poop Wizard /

grapeicecream

Sep 22, 2021 12:07PM

> todd amundson wrote:

> -------------------------------------------------------

> Redline MTL

>

> Give it a try

I was thinking about trying a gear oil.

Would be a big change from 0W20.

Re: Rotella t1 straight grade

Graham Motzing /

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grahammotzing

Sep 22, 2021 01:00PM

Gear oil and plain bearings is no bueno. If you have a clutch bushing not roller bearing it will eat it. I actually got a Sachs a couple years ago that had gear oil in it and fucked it up bad. Basically textbook of what I learned in engineering school.

I had it in an e50 once and it just felt like it would never fully lock up. The engagement curve would come in similar to 15w40 but at the top it would slip.

Plus it smells like cat piss.

Also gear oil is measured different so 85w90 isn't much thicker than 15w40.

Re: Rotella t1 straight grade

Nathan Wizard /

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nathanwohlfeil

Sep 27, 2021 11:03PM

I heard the 15w40 is fantastic via my club mate Tom in his e50, he just changes it quite often as well

MOPED ARMY

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