90 TR Fuel Stabilzer ?

The ratio of Stabile to Gas is mentioned on the container somewhere. If your car is going to sit for a few months I would probably add some. If the car is going to sit for only a few weeks then Stabile will probably not be necessary. The bottom line is, how long will the fuel that's in the tanks right now be in there before some fresh gas is added? If it's going to be months before you hit the gas station again...yes...add some Stabile. It will give you piece of mind.

 

Ive had cars & boats sit for months at a time without adding anything and it is never an issue. I guess it wouldnt hurt to add a stabilizer for long term storage. I once had a car in storage for several years, never added anything (because I always said Ill get around to it). To my suprise, after I put a fresh battery in it, it started right up and ran fine. Believe me, I was ready for some big problems and dont recommend doing this by any means.

 

I haven't added stabilizer to by boxer which I don't drive much, if at all, during the winter and have had no problems. However, I recently had my '72 MGB restored and the folks who did that recommended either using stabilizer or putting in race fuel over the winter. So, this year I am using stabilizer on all my "hibernating" cars. 1 oz treats 2.5 gallons.

 

Def add it at the above noted ratio (1oz/2.5gal), but do not go higher than this! It could gum things up as I learned the hard way many moons ago when stabilizing a motorcycle. Figured if 1oz/2.5G is good, more must be better! I was wrong.

 

I have my TR put away for most of the winter so I can attend to maintenance items and don't expect to be adding any fresh gas to it until next spring. It will be started and run on occasion but not really used. I recommend adding the stabilizer AND a gas "drier"/cleaner to the the system, run the engine until fully warmed up so everything gets recirculated throughout the system.

According to my owner's manual the TR with reserve holds about 30 gallons, 26.5 + 4 ga. reserve.
Per recommended ratios on the Sta-bil bottle I added close to the entire bottle (large).

I use this stuff in my home generator as well, nothing like trying to start a balky generator in a wind storm.

 

I'm not sure why your motorcycle got gummed up, the reason for adding the Sta-bil is to PREVENT the deterioration of the fuel and the resulting varnish and "gumming" problems. Maybe your bike had a "pre-existing" condition and the Sta-bil aggravated it.

 

Me neither. I actually don't think it got gummed up, I just used the wrong word quickly typing. But based on past experience including w.that very bike, too much Stabil caused some real PITA starting problems.

 

I imagine the smaller volume of your tank might allow you to change the overall chemical balance of your fuel to a higher percent hence the hard starting. Makes sense.