Thread: Castrol Syntec Blend 10W-40, Snowblower & Lawnmow - Bob Is The Oil Guy

Ok I'm sorry JTK not everyone, you have my apologies. I did look for 5W-40 but they did not carry it. I was amazed they didn't carry a 0W-30 either. One way or another, I have decided to use the Castrol syntec 10W-40 in the mower in the future, and Pennzoil Platinum 5W-30, or some other 0W-30/0W-40 oil in the future. I did consider the Mobil 1 0W-40, but I am hesitant to use Mobil 1 (which was also $3 more a quart than PP was)

I think you made a good move. Snowblower will be just that much easier to start in very cold weather. I mean, when you have to get a large snowfall cleaned up so cars can use a laneway, you don't want to be struggling, or wear yourself out, just trying to start a snowblower.

Hehe.. I hear you on the availability of 0w-X weights and 5w40. I can't find 0w's anywhere and 5w40 only at Walmart. Joel

5 yrs on GC 0w-30 for my snowblower Ariens OHC 13hp,lawn mower John Deere 5.5hp OHC and Gererac 8kw generator OHC 13hp.Once a year OCI on these engines. The generator ran 15 days straight last Dec with 3 day OCI. No problem,they all runs smooth as silk.

This year is my first full year on Amsoil Small Engine Formula 10W30/30W. Down hear in Texas we have hot sticky days. Over 100 degrees. Between the lawn mower and edger both oils look fine...the mower is honey color.

I use synthetic in everything with a spark plug. BUT, I think the 10W is too thick for 'dead of winter' cold. If the blower is stored indoors in a heated garage, then OK. I'm a convert to 0W-30. Two years on GC for the snow blower and the last two years on Mobil-1 0W-30. Works great.