i was at our local auto shop and noticed they had a 'fogging oil ' spray.now i think this is MEANT for storage of an engine but my question is : what would be better on start-up...wd40 or this fogging oilspray?

__________________
'95 s500 (bought for wife but can't bear to share!!!) 125kms
'92 legend 180kms
'88 tbirdturbo(fantastic car-only regular maint.)120kms
'87 mustang gt(gone)
'86 tbirdturbo(gone)
'85 mustang gt(gone-but not forgotten)