I kind of combine these 2 together. I buy the full length foam insulation (4 pieces).
I lay a tarp down then lay 3 pieces side-by-side and drive the car up on them.
It gives another 1" or so height from the concrete and really makes a good barrier to the concrete.

The 4th piece I cut into 3 and again lay side-by-side behind the back wheels as the lengths are not long enough.

 

I do about what Marco does, but I bought a piece of vinyl floor covering and just leave it on the garage floor year round. It

 

Do you feel the floor covering eliminates the need to roll the car?

 

Ah, the flat spotting tire debate rages on again. I've been told this is not an issue with tires anymore. However, I put 4 pieces of carpet down just in case. I do not roll the car. I went to a carpet store and they gave me these pieces free. Perfect size for the tires. A little bigger than front door mats. The ends are all sewn so it's not like they are fraying scraps of carpet. They are finished off. I think they were probably those rectangular samples you see in carpet stores. Once the line of carpet is discontinued I think they just pitch them. My .02.

 

I set all four tires down onto their own piece of 1" solid foam insulation
The tires are pumped up to 45 psi
I do not move or start the car for 5 months
Last year the rear S-02s were basically new and the fronts were getting very worn
I have experienced no flat spotting on new or old tires

 

If you "must" drive it once every couple of weeks, then you must. In this case, I would strongly advise putting on a "smart charger" to keep the battery maintained. If you only go for a short trip, the battery's diminished capacity after sitting for multiple 2-week periods may never catch up to having to cold crank an engine so infrequently. Also, if you have a block heater, plug it in for a couple hours (no more) before you start the engine if the car is stored in a heated garage and 3 to 4 hours if it's out in the cold. This will help the oil circulate faster and will help the engine warm up much quicker.
If, however, you are driving it once every couple of weeks because you think you are doing the car a favour, think again.

 

^ I am so glad I don't have to think about all this...

 

Question - why do you say '(no more)'. What's the harm in leaving the block heater on all night if you're going to be driving in the morning Other than the fact that in my neighborhood, I'd probably attract way too many rodents by the warmth!)

JonasM

 

The heating element that is the block heater is not unlike the thing in the bottom of your tea kettle. It literally BOILS the water. If the car is already in a heated environment, the area around the heater will get extremely hot - so much so that if kept on for too long and on a repeated and frequent basis, you can degrade the seals in that area much more quickly. (Outside, in the cold, it takes a lot longer for the coolant in the system to take up that heat from the element. In a heated garage, the coolant will heat up very quickly and will get to the point when it will not remove much more heat away from the element.) Although your engine coolant can get very hot every time you drive the car (especially in summer), it will not sustain 212*F all the time. Your block heater will. In fact, since it's in a closed, pressurized system, it can boil much hotter than this. It will boil the water continuously right around the element. I have seen block heaters that have corroded within its housing so bad that the thing will fall out when driving. This may be rare but it still gives you some idea of how harsh a block heater is when fully operational. Granted, this can take many years of regular use and if you don't intend on keeping the car that long, then it's the next guy's worry.

ps. Also, because it's a heating element, your electric meter will spin like crazy. Of course, if you have no choice but to have it plugged in all night, then you do what you must, but like I said, if it's outside, the natural cold will keep things from getting too hot.

 

Cool. Then I won't worry about it much. The only times I use it is in the early spring or late fall, and only when I expect to drive it the next day. That car is in a detached, unheated garage, so over-doing it isn't much of an issue.

Thanks!

JonasM