My Blazer was getting almost 300 miles on a full tank of gas. After I put a K&N cone filter on, it now gets over 320. This mileage is on long road trips.Icepick said:I'm sure you could use a watered down degreaser and it would be fine.
On a side note, someone on this forum mentioned he picked up 4 mpg only with K and N, now i've used K and N's for years and "Maybe" got 1mpg more out of it, is there truth to this 4mpg more story with these 4.3's?
eh, thats just cause K&N wants you to buy their filter...and keep buying kits to recharge it, thats all. but yeah, you do need the oil on it after you clean it (catches the smaller dusty particles).digital_xtreme said:The filter cleaner comes with special oil that is supposed to be applied to the filter... i wouldn't use soap or anything else than the filter cleaner you can buy at any local automotive store. The directions are very strict about what to use to clean it.