New Redline 80w

G

GasMCAndy

New member
I'm concerned with running the new Redline 80W Gear Oil with 'Shockproof' now that winter riding temps are here in south-eastern Washington. I was originally instructed to just use Castrol GTX auto oil by the seller. I have an hour riding on this 100% Synthetic 80w instead of 10w30 per the manual. Clutch must have been slipping with the Castrol as she really hooked up on the Redline! Only thing is this stuff seems awful thick checking site glass level now in my chilly garage.

2004 EC250 book states 1000cc of SAE 10w30 Transmission oil on one page and 5w50 API SF o SG Transmission oil 1800cc on another. My MC holds 950cc. Seems mucho flawed information in 03-04GasGas manuals- agreed? ........80 Weight tho?

03MC250
 
The castrol has friction modifiers and is no good for wet clutch use.

If I were you - I would switch to rotella syn 5w40 for winter use. It is Jaso rated for motorcycle use - good for wet clutches.

jeff
 
Is Redline "shockproof" the stuff thats opaque blue in color with the teflon suspended in it? If so your lucky, I would avoid it and GTX. My buddy put that in his Harley primary and instant clutch slip. Had to flush it a couple times. Save your $$, Rotella Syn 5W-40W at Walmart is all you need.
 
There is lots of discussion about oil on this forum. Many people have different opinions.

My recommendation is to use any fully synthetic gear oil designed for use in a 2T motor bike. Belray, Motul, etc take your pick.

I would not worry about the oil weight. It is synthetic oil. I often run 80W Gearsaver in -15C conditions, and it is not a probem at all.
 
I use a light gear oil (Putoline) and I have used ATF as well. Both work well.

I'm not surprised the clutch was slipping with Castrol GTX for the reasons stated. You're lucky the clutch isn't still slipping it can often take a few flushes. Some use Auto oils without a problem but it's not worth the risk in my opinion. It seems some Auto oils are fine and others not but how to be sure which?
 
I agree w/everyone who weighed in on "auto oil", it isn't made for wet clutches. One option is oil made for 4 stroke ATVs' with manual transmissions. They are usually available in lighter weights, most bike shops have a couple of different name brands and you don't have to worry about damaging your clutch.
 
iajim said:
I agree w/everyone who weighed in on "auto oil", it isn't made for wet clutches. One option is oil made for 4 stroke ATVs' with manual transmissions. They are usually available in lighter weights, most bike shops have a couple of different name brands and you don't have to worry about damaging your clutch.
Click to expand...

my favorite example of which is amsoil 0w-40.
 
All I know, my 200 has used two different tranny oil's since I've owned the bike. Golden Spectrol 80wt 2stroke tranny oil (Have used this oil for years before owning the GasGas) and Motul 2 stroke tranny oil (forgot the ladel name). I've owned the bike since 2001, I have installed 1 clutch kit (fiber & steel plate) The lower end (tranny) has NEVER been opened up!

I pump in 900 cc of oil during my oil changes.

Good Luck!
 
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