[vron]

Hi everyone, can you help with this question please.

We have just bought a Mc Culloch Petrol Rotary Mower 46s 500 series.

It has a Briggs and Stratton Engine, and recommends to use SAE30 oil, which we have bought.

As you know this is quite expensive to buy, can we use an alternative, like say 5w30, 10w30 or 20w50, without there being any risk of damaging the engine.

Our rotovater engine (Tecumseh 3.5) and our Qualcast Classic 45s petrol mower, both advise SAE 30 oil for the engines, but also says, a multigrade oil of 15w40 or 20w50 are acceptable, we use the 20w50 in both, with no problems.

Your advice would be most appreciated.

[dorimower]

Hello,
I go with the SAE30 recomendation in the machines at work...In fact we use the B&S own brand red coloured SAE30 which seems to be some genuinely good stuff..

...but at home I have tended to use SAE20w50..as a good alternative.

If in warranty though go with what is recomended...SAE30.


10w30 and 10w40....is good for things Honda but are a bit too "thin" I reckon for others..

"Dori"

[Gwiz]

I agree totally with Dori,
Sae30 is the stuff to go for, especially if you have a briggs.
I have used 20w50, but it is rather thin.