Recommendations for Best 20W50 Oil for Hydrostatic Transmission?

Sounds interesting! Does it perform well in higher temperatures too? I’m in a warmer climate.

I’ve used Valvoline 20W50 in my hydrostatic transmission. It worked fine but didn’t quite last as long as I hoped. Might be better for lighter applications.

That’s good to know! I was considering Valvoline but might explore other options based on your feedback.

For those wondering about maintenance, I found that adding a small shot of additive with the oil really helps with longevity. Any specific additives you’d recommend?

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I’ve used Lucas Oil Stabilizer with good results! It improves viscosity and has made a noticeable difference in transmission smoothness for me.

Can anyone share their experiences with off-brands? I wonder if any store brands are worth considering for cost effective options.

I’ve tried a generic 20W50 once and it was a disaster. Sludge built up in my transmission. Stick with brands like Mobil or Castrol for reliability.

Totally agree! Quality definitely matters when it comes to hydrostatic transmissions.

Has anyone had luck with Royal Purple? I’ve heard mixed reviews but I’m curious about real user experiences.

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I’ve used Royal Purple for my ATV and loved it! High performance, but not sure how it holds up in hydrostatic systems. Anyone else tried?

That’s interesting, Royal Purple is known for its high film strength. Might be worth a try if you’re looking for performance under load.

Now that you mention it, film strength is really critical in hydrostatic systems. I’ll look into it further, thanks!

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For hydrostatic transmissions, I’ve had great success with synthetic 20W50 oil. It lasts longer and handles heat better than conventional oils. I usually change it every 100 hours of use.

That’s good advice! I also check for any unusual noises or sluggish operation as signs that the oil might be degrading.

Great tips, william52! Generally, a change interval of 50-100 hours is ideal, but you should always check the manual for specific guidance on your model.

I’ve found that 20W50 oil can get sludgy with time. When it looks dark and has a burnt smell, it’s definitely time for a change!

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Absolutely! I also recommend checking the oil level regularly to prevent any overheating issues.

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What brand do you guys recommend for 20W50? I’ve seen mixed reviews on different labels.

I mainly use Mobil 1 20W50 for my hydrostatic transmission. It has worked well for me and meets the requirements I’ve encountered.

Haven’t tried Mobil 1 yet! I’ve been using Valvoline, but I’ll give it a shot next time. Any specific tips for those using Valvoline?