hevansrv7a
Well Known Member
The Rotax documentation says that an acceptable oil is any heavy duty motorcycle oil, synthetic preferred, which is designed to properly lubricate the gears.
I have 1 bottle of this oil (picture).![Screen Shot 2022-08-25 at 2.46.15 PM.jpg Screen Shot 2022-08-25 at 2.46.15 PM.jpg](https://vansairforce.net/data/attachments/17/17881-ce261f5cb4d6adc1353617114b8ac20a.jpg)
My question is whether is is OK to mix some of that kind of oil with the special Shell/Rotax oil that is already in my "12".
I'm not using leaded gas, just premium mogas with up to 10% ethanol. I just want to top it off, not use a lot of it. It would probably be half a pint or less added to the 3 quarts or litres minus what has been lost/used.
Along with yes or no, some reasons would be helpful.
I learned today that the Aero Shell Sport Plus 4 is currently hard to get. I bought 4 bottles today from a Rotax authorized shop who also told me they are being told to limit the sales to one case (12) per customer. Aircraft Spruce is backordered to the end of September.
I have 1 bottle of this oil (picture).
![Screen Shot 2022-08-25 at 2.46.15 PM.jpg Screen Shot 2022-08-25 at 2.46.15 PM.jpg](https://vansairforce.net/data/attachments/17/17881-ce261f5cb4d6adc1353617114b8ac20a.jpg)
My question is whether is is OK to mix some of that kind of oil with the special Shell/Rotax oil that is already in my "12".
I'm not using leaded gas, just premium mogas with up to 10% ethanol. I just want to top it off, not use a lot of it. It would probably be half a pint or less added to the 3 quarts or litres minus what has been lost/used.
Along with yes or no, some reasons would be helpful.
I learned today that the Aero Shell Sport Plus 4 is currently hard to get. I bought 4 bottles today from a Rotax authorized shop who also told me they are being told to limit the sales to one case (12) per customer. Aircraft Spruce is backordered to the end of September.