The viscosity range of an oil is indicated by a designation such as "10w-30". This indicates the viscosity at a low temperature (the 10) and at a high temperature (the 30). Synthetic 10w-30 will have essentially the same viscosity range as non-synthetic 10w-30. Synthetics also don't shear down like non-synthetics so they maintain their viscosity better over time. The Yamaha representative is, of course, pushing their own oil product. Any contemporary 10w-30 weight oil, whether synthetic or not, will be fine.
Quote:
Originally Posted by jchase
Again, I noticed when the Villages used 10-40 I questioned it. I emailed Yamaha. They said they recommend 10-30, not 10-40, especially in our temperature. The representative also said since it's a splash system (no oil pump) synthetic oil is to thin. He said use Yamalube 10-30.
They should know (I hope!)
You can get the aluminum gaskets at the Village Golf Cart shops or online. Part number is Yamaha gasket (812-11198-00). Make sure you change them every oil change. The block is aluminum and the bolt is steel. You can strip the block because the gaskets flatten once they are used. I know from experience I stripped a block once, expensive!
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