What oil for Hatz ES.780,

[vhgmcbuddy]

I have googled and goggles but can’t find what oil the Hatz ES.780, engine has that fitted to a mk4 jem i am servicing/tiding up for a friend ..if i was to hazard a guess i would say HD 40
thanks in advance

[roatavator]

Hi Dave
This is annoying, I used to have one of these but didn’t keep a copy of the engine manual. SAE 40 is definitely too thick. From memory I’m pretty sure for UK climate it’s SAE20, for warmer countries SAE30. But I could be wrong. These are heavy engines to turn over, especially when cold in winter, at one time I put too thick oil in (30 I think) and could hardly turn it over in winter.
Peter

[Author]

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