small engines haven't changed. The only reason they are recommending the
multigrades is for emissions ratings. Also, it is more likely someone will
have a multigrade on their shelf than a straight weight. Small engines use
straight 30.

--
Steve Barker



"Rich256" wrote in message
...
Bob wrote:
"Stormin Mormon" wrote in message
...
I think Briggs reccomends a good brand of 10W30. Penzoil and Castrol
are good.

Every mower I've had recommended straight 30 wt.

Bob

Not any more. They all say multi-weight is also good except that since
air cooled engines run hotter than others the oil level should be checked
more often. The solution for that is to use synthetic which will stand up
even better than straight weight. Synthetic is really considered to be
like a straight weight except it doesn't get as thick when it gets cold,
therefore can meet the multi-weight classification.