Was wondering if is a problem to switch from normal oil to 4x4 synthetic, I do know that once the change is done, need to stick with it, will this help engine last longer and gas mileage:confused:
10-31-2007 12:07 PM
It's not true that once you run synthetic oil you can't go back to conventional oil.
10-31-2007 12:13 PM
ok nice to know, but is it worth the extra 3 dollars a quart
10-31-2007 12:16 PM
Kind of depends, how long do you plan to keep it, how hard do you drive it now, how hard and how far has it been pushed before, etc.. There isn't one straight simple answer for everyone.
10-31-2007 12:22 PM
ok as far as pushed before no clue, but does run pretty good for the mileage except a knock but was told is normal,reason why thought of synthetic, and my driving now, normal everyday till get the 4.0 next year in fall
10-31-2007 12:40 PM
Is it just me? or is there some kind of odd disconnect between the title of this thread and the content?
Engine knocking, is this normal?
Is your engine knocking after you switched?
I R Confused...
10-31-2007 01:21 PM
lol i was doing 2 posts and had accidently wrote wrong in here then changed title, knocking is other post, this is standard oil to synthetic question. and to answer you no i have not changed engine as of yet, am putting the 4.0 in next fall after i contact jasper and do some changes on the wrangler
10-31-2007 03:48 PM
I was running standard dinosaur juice in my rig right after I bought it (it had 135,000 mile on it then). I had a lifter tap that just drove me nuts!!! I changed to Mobile 1 Synthetic and that annoying little tap has disappeared. Been thru 3 oil changes with the Mobile 1 now...all at about 5500 mile interval +/- 2-300 miles. Still the tap hasn't been heard again.
There...that should tie the threads together...
10-31-2007 04:56 PM
now with that in mind, should i use the 4x4 synthetic, change to ngk plugs and higher end wires,cap and rotor. if doing to do it guess should go all the way