I generally make it a point to drive my XJR at least once per week. I have gone as long as two weeks before but it's been extremely rare. Lately, due to travel, work schedule and heavy snow & rain my XJR hasn't been out of the garage in over three weeks now. It also looks as though it'll be at least another week before I will have a chance to take it for a spin. It's in great shape and everything works perfectly, I don't want it to deteriorate due to neglect!

I disconnected the battery and topped off the charge with the charger on my workbench; I left it disconnected. Other than that I haven't done anything to the car. Is there anything I should be concerned about?

 

You should be fine: just drive it.

 

Maybe some "Sta-Bil" in the gas tank?

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We surely don't have the best of fuels here, but my car is totally fine with 1-2 months of non activity.
All I do is the same like you, disconnect the battery, and cover her up with a soft cover.
She is parked inside though, that might make some preventive actions unnecessary.

 

Usually a good month or so between drives here. I have a trickle charger, but other than that, it seems fine.

 

Usually 2x per week here(weekends), I keep it on a tender.

 

I have lived abroad for some eight years. Which meant I always had several cars in storage. (Alfa Romeo Spider, Mercedes W123 and the XJR). The Jaguar has been in storage for four years when we lived in India. During those four years I probably drove it three times only, for about a week or two each time,

I do not take any big precautions. I always fill the fuel tank to capacity and put extra air/pressure in the tires, usually about .5 bar extra. Make sure the car is clean when I put it away. Battery goes on a trickle charge.

The biggest problem for the Jaguar is the tires. They might go square if you leave the car for a longer period of time, no matter how much air/pressure you put into it. Other than that I have had no problems with the Jaguar. Even after a few days of being parked the Michelin take about 5-10 minutes to settle back in.

With a good battery I found I could leave the Jaguar easily sitting with no trickle charger for up to 8-10 weeks as well. These days all my hobby cars have their own trickle charger in my garage. And with our Jags you can not take any chances with the battery.

Once on my Alfa Romeo Spider after about 18 months the fuel had gone off. You will smell it immediately, do not start, drain the tank, replace the fuel filter.

Good luck.

Jeroen

 

my XJR sits idle in the driveway for most of the winter so she doesn't have to live with all the salt we use on our roads up here. I try to get out and start her every couple of weeks and while she heats up rev the engine a little as most cars aren't charging the battery at idle. I still usually have to use a charger by the end of winter if I haven't been able to find enough nice, dry days to get her out of the driveway. Although it would surely be better to have regular use I haven't seen any issues from winter hibernation..

 

Thanks all. I guess then my only concern is flat spots on my Michelin’s. Hopefully only 1 month of sitting won’t cause any flat spots that can’t be fixed in 10 minutes of driving.

 

You can put air in up to tyre max.