Mowing today my Home Depot mower from around 2012 spit out deck. It is rotted in several places so now it is time for replacement. I was looking for another briggs 550ex 140cc since this one has been good except for smoking when first started which Briggs or Home Depot would take of as they said normal. Never has used oil between changes and plugs always look good. Looking at all major retailers the reviews were terrible for these engines as carburetor issues galore with being backorder and no one is standing behind them but I thought I would order one since I have one. Got on Tractor Supply to place an order as I had 30.00 rewards and with cheapest mower 21" 140cc for 189 then I went to see if my air filter would work since I just replaced it then oh oh. The 140cc is one of Cub Cadet Powermore engines and to late to cancel. I have the 208cc Powermore on my tiller but I don't have a lot of hours on it but so far so good. I hope this 140cc engine is as reliable as my briggs was. Any good or bad about this engine? Will run Synthetic oil after break in.