My wife's acura has to get a new airbag but they're saying it could take months. She has a free long term rental & they made her sign a waiver that she won't drive it, so it's just collecting dust in the garage. Besides the battery that's already dead, how long before seals start to go dry & other potential issues arise? Should I use some sta-BIL in the gas tank like I do on the lawn mower? Obviously a battery tender is on my shopping list, but what else can I do to minimize the effects of long term storage? The thing is paid off & we just had the injectors, transmission & radiator serviced (drain & fill) plus fresh brakes, new shocks & new tires. Clearly I won't be interested in trading it in anytime soon...