Thanks. This is all good information. I have only been using Petro Canada's 94 Octane but I see that might not be the best for winter storage.
I have a Shell station near me? Maybe I'll make sure my tank is full of V Power NITRO+ Premium and add the appropriate amount of fuel stabilizer.
From Shells web site...
Learn more about Shell V-Power NiTRO+ Premium Gasoline and how it can help keep your engine running like new.*
www.shell.ca
Shell V-Power® NiTRO+ Premium Gasoline helps keep your engine running like new* with:
- Four levels of engine protection against gunk, wear, corrosion and friction
- The highest octane of all Shell fuels at 91 octane
- The highest concentration of the Shell Nitrogen Enriched Cleaning System
- Seven times the minimum amount of cleaning agents required by federal standard
- 0% ethanol at every station in Canada