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20 mpg on my tj!!!

13K views 104 replies 44 participants last post by  ChaddG 
#1 ·
I cleared the adaptive memory, went through the 50 starts in 200 miles, filled up with premium, and got 20 mpg!!!!! :eek: I only ran the tank down the first 5 gallons. got 100 miles to those 5 gallons. :thumb:

I lost the thread, here is how I remember it going.
disconnect the + battery terminal,
touch the + terminal to the - terminal,
turn the ignition on,
turn the lights on,
turn them off,
turn the ignition off,
reconnect the + terminal.
 
#88 ·
readin this thread has made me question some things ppl have said vs the experince/schooling for my degree in automotive tech.....I AM NOT BASHING ANYONE nor do i mean to offend but here goes


#1 toping off your tank after the pump "clicks off" can damage the EVAP system on new vehicals i cant rember exactly what it does as ive been out of school for 5years
topping off the tank will actually throw a MIL light on the newer F-150s at work

#2 when the OP described the prosses of disconnecting the bat cable this will not harm any electronics this is a procedure we have used many time where i work it simply clears stored memory you can also remove bolth + & - and tape them together for 10 min without turning key on or light on

#3 when the OPposted "repeated 50 times for 200 miles i belaeve he ment 50 key starts run to operating temp) in 200 miles. driving easy ie no heavy throttle most vehicles will rember the last 50-100-200 key starts (chevrolets at at the highest of the list) by clearing the memory of the computer the 1st 50 key starts will "reprogram" the jeeps driving style however in my experance this has never been a notacible change at least for the jeep

anyway theres my .02 hope i didnt pi** anyone off
 
#91 ·
I'm just surprised the phone sits on your leg given the slope of the hill you're going down :)

I drove super conservatively for 1/2 a tank to see what would happen and got 15.5mpgs.... fail. I'd rather run 13-14mpgs and not drive like a senior citizen.
 
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