Postby lighthammer » October 9th, 2012, 5:16 pm
Why not?
Don't use one if you're driving in the following situations though....
1. Dusty/dirty environment, eg. quarry
2. Wet environment (eg. forest/rivers)
Also be careful not to over-oil the filter - you'll get away with that a little bit more than the newer trucks cuz ur WLT engine has no MAF sensor (which can get fouled if the filter is overoiled).