Stop treating your Jeep 4.0L like a MODERN ENGINE... It isn't one!

The Jeep 4,0L inline 6 cylinder engine was in use by AMC and later Chrysler as a prominent power plant for Jeeps from 1986 to 2006. This engine was designed with 1970's and early 80's technology and only moderately upgraded through its production life. It wasn't a modern engine in 1986 and it isn't a modern engine today.. Stop treating it like one! In this video we will go over a simple "Saturday afternoon tune up" to try to bring a couple MPG back to the tired old 4.0 Get 10% off all GRYPMAT gear by using code D&E10 at https://www.grypmat.com?aff=DEinthega... HAS ONE OF OUR VIDEOS HELPED OR ENTERTAINED YOU? Want to help up make more? Checkout D&E Merchandise T-Shirt, Beer Koozies, Stickers and More: https://www.etsy.com/shop/DandEintheg... We hope you enjoyed this video and will keep in mind that all information included is intended to be purely academic and in fact is only the opinion of D&E. We are not professionals, nor are we qualified to knight you a professional. D&E want to ensure that anyone modify or fixing their own vehicle does so in a safe manner which leaves the vehicle in a legal, roadworthy state. In short, DON'T BE A MONKEY WITH A TOOL BOX! If you don't know what you are doing, leave it the professionals!