AFAIK - GT85 contains graphite, a better lubricant. WD40 does lube too, but contains no graphite - more a general purpose spray.
Naaa wd40 is not a proper lubricant, it's a water displacer/penetrant really. I've seen a thread on a BMX forum where people got quite heated over this issue. Use it on damp spark plugs or something, but not your phat gold chain.
Naaa wd40 is not a proper lubricant, it's a water displacer/penetrant really. I've seen a thread on a BMX forum where people got quite heated over this issue. Use it on damp spark plugs or something, but not your phat gold chain.