Use 87 on all our vehicles : Just back from Burlington took the 2018 Outback LTD its our Travel car ( only 20 k mikes on it )averaged 35.7 mpg round trip.
The 2014 Rav 4 XLE. (With 64 k on it ) is our everyday driver and for travel about an hr radius that gets approx 30 mpg yr round .
Always use 91 and STABIL in my Ariens snowblower
i have an EGO electric mower and love it .. 60 minute run time , with a 60 minute quick recharger for the Lithium Ion Battery ...quiet , light weight , no maintenence , no fuel, no plug, Will buy an EGO electric trimmer comes with another Lithium I on battery that can be an additional back up for the mower .
If i ever had to replace my Ariens i would buy an EGO ,2 stage electric Snowblower . I have a friend in Potsdam who has had one for now 2 seasons and loves it ..again no maintenance , fuel , plugs etc whats not to like .