Fork Oil

[SpudRider]

Dexron VI is the new standard for General Motors vehicles in North America. Therefore, I'm not surprised Dexron VI is not readily available everywhere.

However, most ATFs sold everywhere have a viscosity around 36 cSt, which is the same as the Motul Expert, 10W fork oil. Indeed, most ATFs also have a higher viscosity index (VI) than the Motul fork oil. The VI indicates an oil's ability to maintain its viscosity over large temperature ranges. For example, Castrol TransMax DexMerc has a viscosity of 32 cSt, and a VI of 200, which is almost twice as high as the Motul fork oil.

http://msdspds.castrol.com/bpglis/Fu..._MERC_0460.pdf

[irishbiker125]

Originally Posted by SpudRider

Dexron VI is the new standard for General Motors vehicles in North America. Therefore, I'm not surprised Dexron VI is not readily available everywhere.

However, most ATFs sold everywhere have a viscosity around 36 cSt, which is the same as the Motul Expert, 10W fork oil. Indeed, most ATFs also have a higher viscosity index (VI) than the Motul fork oil. The VI indicates an oil's ability to maintain its viscosity over large temperature ranges. For example, Castrol TransMax DexMerc has a viscosity of 32 cSt, and a VI of 200, which is almost twice as high as the Motul fork oil.

http://msdspds.castrol.com/bpglis/Fu..._MERC_0460.pdf

Spud, your a gem. Great info and I really appreciate it. I have a litre of Valvoline ATF Maxlife which has almost identical properties to Dexron VI. I use the Valvoline ATF in the gearbox of my Enfield.I will let you know how I get on!

[katoranger]

I used the valvoline maxlife in my old buick. It was fine in there.

[SpudRider]

Originally Posted by irishbiker125

Spud, your a gem. Great info and I really appreciate it. I have a litre of Valvoline ATF Maxlife which has almost identical properties to Dexron VI. I use the Valvoline ATF in the gearbox of my Enfield.I will let you know how I get on!

I highly recommend the Valvoline MaxLife Dex/Merc ATF. I just put the Valvoline MaxLife ATF in my Zongshen and Honda XR650L forks. I also put the Valvoline MaxLife ATF in the outer chamber of my Honda CRF250X forks.

The Valvoline MaxLife Dex/Merc ATF has a viscosity of 28.18 cSt, and an excellent VI of 173.

http://www.valvoline.com/pdf/maxlife_atf.pdf

This particular ATF seems to provide the perfect damping for my Zongshen forks.

[SpudRider]

You can read more about my experience using Valvoline MaxLife Dex/Merc ATF as fork oil by reading post #48 and beyond in the following thread.

http://www.chinariders.net/showthrea...t=10266&page=4