According to this chart I could run 0-40 year round and cover all my bases. But I think a 5w30 would be better fit. Since Briggs and Stratton 5w30 synthetic is readily available, could I run that in my lt155 with hydraulic lifters?
How so, the 15W40 should be a rebrand of MAG1 Premium Conventional 15W40 which is Volvo VDS-4.5 approved, which means it has to pass the Volvo T-13 oxidation test, which is a high temperature oxidation test for turbo diesel engines, far more stress than a little lawn mower engine will ever see, it's probably made with Exxon EHC base oils so even though it's deemed "conventional" it's pretty much semi-synthetic. The 10W40 syn-blend probably barely meets the requirements of API SP and carries no stringent approvals.if you just want to buy single quarts id recommend supertech 10w-40 syn blend in spi sp as the 15w40 conventional is an Sn dual rated conventional and is probaly less good overall. For the filter i have an st3614 on my la120 since its not gonna have enough hours run on it for a fram ultra to matter. If you're gonna buy in jugs id get delvac if you mow in temps above 60f (who doesn't) or quaker state euro 5w-40 if you mow grass and snow in sub zero temps (who does?). A 10/15w-40 still flows plenty well enough at lawn mowing temps 60f or above. Heck they recommend a straight 30 down to 32f.
supertech syn blend 10w-40 api sp for quart bottles or delvac for jugs. i wouldn't bother spending more on a 0/5w since you're not gonna run a lawnmower in below 0f temps.
I just gone using synthetic 10w30 for 4 lawns a week for 2 months. I only added 2 ounces in between. Including the oil change I only used 16 ounces.I have 3 mowers and for the last 5 years I've been using 15w40 wt Shell Rotella T. What I found after using 5 or 10 w 30 wt is, I'd always have to ad oil every 2 or 3 mows. I have yet to need to ad oil with the 15w40 wt, during the mowing season. The JD chart says you can use 15w40 for just about any time you would be mowing up to 122f. That's what I would use.,,
This one uses a vertical mounted filter, but vertically mounted upside down, so I'd stick with the appropriate specified filter.Wix 51348 or 51516 oil filter if it fits...