So I had bought some for my old car long time ago and basically forgot about it... Is it still safe to use? after sitting in my garage for such a long time? Please advise.. Thanks...

Also, can i clean my leather seats with this? Or just the dash? Steering Wheel? ArmRest?

 

The average shelf life for most products is 3 - 5 years. Does this mean that the product is completely bad and you should throw it out? No. There is a good chance that the product is still ok to use, but may not last quite as long, or may not spread as far, etc.

With any product, always test it in small inconspicuous area before applying it to your entire vehicle. Monitor the characteristics of the product, ease of application, smell, color, etc. and if they seem like things aren't right, then it's probably best to get a new bottle.

Also, you want to make sure the area you are treating is already cleaned, since 303 Aerospace Protectant is only a dressing with UV protection. It does not have any cleaning agents in it, although the liquid along with a microfiber towel applying the product, does seem to clean some surfaces. It wouldn't have much effect on a set in stain though.

Hope this helps.

George