msparks
Member
What I plan to do for my 1025 (with Yanmar engine) is to buy 3 quarts of Castrol Edge at my VW dealer for when I change the 1025's oil. They sell it for $8/qt, which is less than Mobil 1 ESP, and I cannot find any Mobil 1 ESP except on line for nearly $13/qt. Castrol Edge is 5W30. This matches the chart requirement in the owner's manual. Wish I could get 0w30, but they don't formulate it to meet VW's 507 spec.
The only difference between a 0w30 and 5w30 is that the viscous is less at starting, or lower temperature, on the 0w30 but it's the same as running temperature.
Ralph
AMSOIL makes VW 507spec oil. Not really sure why a VW oil is spec'd for a yanmar but anyhow. They make a full line of synthetic lubes at great prices, shipped to your door. PM me if you want to "price compare"