Quote Originally Posted by karky View Post
snip... the roads and tracks i travel are 4wd country only so 15s and 16s per hundred would make it a viable conversion.
I reckon you would have buckleys chance of getting 15's in "4WD country"... anything under 20 would be a win.

What LPH are you getting out of the 3 litre CRD?
I would guesstimate an LS would use 20% more at the very least.