Here is an email I've sent to Amsoil. Who knows what quality of response I'll get. Anybody here go an opinion?
Originally Posted by Questions sent to Amsoil From dafish
Amsoil Technical Support:
I'm hoping for clarity regarding Amsoil's product recommendation for transmission/transaxle fluid for a 2018 Polaris Rzr turbo. The Polaris oil recommended is Polaris AGL. The confusion about Amsoil's recommendation comes for the following conflicts:
• Historically Amsoil recommended your Synthetic Chaincase & Gear Oil for this application, although at times Amsoil has also recommended its synthetic tractor hydraulic fluid as well as an AGL alternative. In the last few years, really since Amsoil created a specific AT/UTV product line, Amsoil has specified your Synthetic ATV/UTV Differential and Transmission Fluid.
Amsoil's Synthetic ATV/UTV Differential and Transmission Fluid is reputed to be a high quality synthetic 75W90 weight oil, but none the less a 75W base viscosity oil.
• Polaris AGL has been independently tested and shown to be essentially a 5w-20 motor oil, or perhaps an ATF. It's certainly not a 75w gear oil. (which could be as low as 10W on the J300 sales, or as high as 20W).
• The Polaris transmission includes upper bearings that require excellent "splash" lubrication and "Climbing" characteristics sometimes associated with lighter oils. It also includes a chain drive component. Heavier gear oils, like 75W90, are often discouraged in such circumstances due to concerns of chain stretch induced by the heavier viscosity.
o Note the original Amsoil recommendations not only conflict with todays, but don't include the above concerns.
o The factory Polaris warranty is quite short, and Amsoil's support of same doesn't really offset the concern of longer term use.
Questions:
1) What is the actual gear weight rating (ie 75w90, etc..) of Amsoil's Synthetic ATV/UTV Differential and Transmission Fluid?
2) Would you ask someone, possible with a product engineering background, to speak to the apparent 75W weight oil recommendation concerns of chain stretch and reduced splash, and inconsistency with Polaris's own AGL viscosity?
3) Does Amsoil make an ATF that is GL-4 rated?
Let me be clear: This isn't a challenge to the quality of Amsoil products. I've immense respect for Amsoil. While I hope I've shown there is superficial room to question this particular product recommendation, I'm confident Amsoil has an excellent response available.
My thanks,
Originally Posted by Questions sent to Amsoil From dafish
Amsoil Technical Support:
I'm hoping for clarity regarding Amsoil's product recommendation for transmission/transaxle fluid for a 2018 Polaris Rzr turbo. The Polaris oil recommended is Polaris AGL. The confusion about Amsoil's recommendation comes for the following conflicts:
• Historically Amsoil recommended your Synthetic Chaincase & Gear Oil for this application, although at times Amsoil has also recommended its synthetic tractor hydraulic fluid as well as an AGL alternative. In the last few years, really since Amsoil created a specific AT/UTV product line, Amsoil has specified your Synthetic ATV/UTV Differential and Transmission Fluid.
Amsoil's Synthetic ATV/UTV Differential and Transmission Fluid is reputed to be a high quality synthetic 75W90 weight oil, but none the less a 75W base viscosity oil.
• Polaris AGL has been independently tested and shown to be essentially a 5w-20 motor oil, or perhaps an ATF. It's certainly not a 75w gear oil. (which could be as low as 10W on the J300 sales, or as high as 20W).
• The Polaris transmission includes upper bearings that require excellent "splash" lubrication and "Climbing" characteristics sometimes associated with lighter oils. It also includes a chain drive component. Heavier gear oils, like 75W90, are often discouraged in such circumstances due to concerns of chain stretch induced by the heavier viscosity.
o Note the original Amsoil recommendations not only conflict with todays, but don't include the above concerns.
o The factory Polaris warranty is quite short, and Amsoil's support of same doesn't really offset the concern of longer term use.
Questions:
1) What is the actual gear weight rating (ie 75w90, etc..) of Amsoil's Synthetic ATV/UTV Differential and Transmission Fluid?
2) Would you ask someone, possible with a product engineering background, to speak to the apparent 75W weight oil recommendation concerns of chain stretch and reduced splash, and inconsistency with Polaris's own AGL viscosity?
3) Does Amsoil make an ATF that is GL-4 rated?
Let me be clear: This isn't a challenge to the quality of Amsoil products. I've immense respect for Amsoil. While I hope I've shown there is superficial room to question this particular product recommendation, I'm confident Amsoil has an excellent response available.
My thanks,
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