Oil

[Steve C15]

Hi

Sorry in advance for such a mundane question but;

Which oils do people prefer to use for 1953 A10 plunger engine, primary and gearbox please ?

Regards   Steve

[mo goldie]

Hi I use morris golden film 20/50

[ChrisG]

For the Gearbox, if you use a gear oil say EP 80, specify the 'Yellow metal' compatible one as the standard EP has an additive that the bronze bushes don't like!

[Bess]

Hi,
     I use Silkolene 20W/50 which has good detergent/dispersant properties and oil change frequently:

https://motornuts.co.uk/silkolene-silkolube-20w-50-4l?uilang=1&gclid=Cj0KCQiAs5eCBhCBARIsAEhk4r5svpvq2T7A8pyfE1PWOQy-tXgPqm4rD82tPhqXwkr7ZU_lJu5SY5IaAqNeEALw_wcB

And as Editor a non EP 90 gear oil (not to be confused with a 90 engine oil).

Best wishes...

[Calum]

For the Gearbox, if you use a gear oil say EP 80, specify the 'Yellow metal' compatible one as the standard EP has an additive that the bronze bushes don't like!

GL4 spec is what you want - GL5 has too many sulphates in it which leach the copper out of bronzes (so far as I understand it). Many people will tell you they have ran GL5 for years with no I'll effects, but given GL4 is just as easy to find and no more expensive I don't take the risk. I believe GL1 grades are still available from agricultural dealers etc but I've never had any experience with it. I would guess it contains even fewer sulphates (and so smells even less eggy!)

Indeed as Bess hints to above, gear oil weights aren't the same as engine oil weights, which is really handy 

[Steve C15]

Thanks for the info guys.