20th Apr 2011, 05:56

WD40 will damage all rubber door seals over time.

Constant use will make the rubber swell and become larger.

Use only rubber lubricant or silicone lube only please.

Window tracks will want ONLY silicone lube.

8th Aug 2011, 00:24

Sorry mate, WD40 actually eats rubber. Typical example: caliper's seals...