PAJERO fuel econonomy (or lack of )
Submitted: Friday, Nov 14, 2008 at 12:08
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LOUNGE GECKO
Hi Guys and Gals,
I have a 94 NJ Pajero 3 litre and I am constantly chasing better fuel economy. I'm talking variations from 13 to 21 litres per 100 km. Has anyone out there had similar problems and if so how have you got around it. was thinking of gas conversion a while back but the initial cost ( I was quoted up to 4000 and a huge wait) and the stories that the pajero does not like gas have put that on the back burner. I am a mechanic by neccesity and can do almost any thing on a vehicle given the right direction ( aren't
gregory's great?). So all suggestions are welcome, with out being rude. Just want to fix this thing so I can get out there.
Reply By: Member - Pesty (SA) - Friday, Nov 14, 2008 at 14:32
Friday, Nov 14, 2008 at 14:32
I have a 3L 1990 pajero that we use for work, it averages about 13 -15 L per 100,
and a 6cyl petrol falcon that does about 12-14 L per 100,
and a petrol cruiser that does about 15-18 L per 100,
and a deisel cruiser that does 15-18 L per 100,
and a deisel mazda truck that does about 13-15 L per 100
Your 13 plus sounds about right around here, all will consume much more if the right foot is not kept under control.
Cant help with a remedy, other than a gas conv, and there are plenty around with it done.
Personally i wouldnt as i dont want to loose my fuel
tank in a rural area,
The falcon is pet/gas and is cheap to run.
Cheers Pesty
AnswerID:
335217
Reply By: Member - Oldplodder (QLD) - Friday, Nov 14, 2008 at 15:52
Friday, Nov 14, 2008 at 15:52
Yep, sounds about right.
Depends on how hard you push it.
Keep it under 3000 and half throttle around town and use the torque for 12l to 13l/100k. Get stuck into it and accelerating 2100kg pushes the fuel consumption up.
Friend in a pajero gets 12l/100k around town, with a 3.5l, about the same as my diesel.
They do have a low diff ratio, so rev on the highway.
Anything much over 100k/hr and they chew the fuel.
AnswerID:
335234
Reply By: LOUNGE GECKO - Friday, Nov 14, 2008 at 18:28
Friday, Nov 14, 2008 at 18:28
wow thought i would be able to do better than that. had an 88 patrol on LPG/fuel with all the bells and whistles, a serious 4x4 and i was able to get 10 per 100 a lot of the time. what about changing ECU for after market or later model stuff? has any one gone down that path? Just that Mrs Gecko complains about the cost any time I want to hook up the cavalier and go exploring our great back yard. even a trip to Fraser is a hastle and I live in Hervey Bay. LOL.
AnswerID:
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Follow Up By: Member - Oldplodder (QLD) - Friday, Nov 14, 2008 at 18:35
Friday, Nov 14, 2008 at 18:35
10l/100k is good economy from a 4 litre petrol.
So you are driving the pajero at the same speed and in the same way?
FollowupID:
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Follow Up By: Blaze - Saturday, Nov 15, 2008 at 03:25
Saturday, Nov 15, 2008 at 03:25
Just read your follow up about 10ltrs per 100 on a 88 patrol (thats a carby motor), that must have been one hell of a freak motor, they are thirsty at the best of times. Either that or your maths has improved with age LOL
FollowupID:
603022
Reply By: Blaze - Saturday, Nov 15, 2008 at 03:20
Saturday, Nov 15, 2008 at 03:20
Hi mate,
Pesty and all above are spot on.
I have a 3ltr Challenger (same motor) and get about 13ltrs per 100 on ULP and 14ltrs per hundred on LPG, or should I say $18.00 approx per 100 on ULP and $9.80 per hundred on LPG.
I get worse now with the larger tyres and of course I get worse with the Camper in tow. If your driving is not towing and you are using 21 ltrs per 100, this would have to be in sand or some very heavy right foot work.
As for fitting LPG, all depends on how long you intend on keeping it, you will have to do the math.
After approx 22,000klm's you will start making a saving, taking into account the government cash back unless you are from WA and of course with their state rebate, it would be about 11,000klm's, and you also get the extra range of dual fuel tanks.
I have heard some of the rumours also about Mitsi's not liking gas, that was from some very early models fitted with gas from near new, I am guessing the motor has a few K's on it by now in by which case the valves will have already hardened.
Only other choose is take out 2 pistons LOL
AnswerID:
335319
Follow Up By: LOUNGE GECKO - Saturday, Nov 15, 2008 at 07:57
Saturday, Nov 15, 2008 at 07:57
yep your all spot on. the figures i am talking are with the cavalier camper fully loaded, and probably do tend to get under it a bit, just love the sound echoing through the trees, (can't have the kids seeing cuddly wild life). guess I will have to lighten the load by leaving the family home next time, they always tell me they don't like
camping, I suspect it's just the setting up and packing they don't like.
Also the GU Patrol was put together by CAPA in
Melbourne I believe, so it may have been a freak. loved that beast but to many trips to
Kingston in S.A. and the bugger rusted out under me.
FollowupID:
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Reply By: Miss(an)Jo - Toad Keeper (Bris - Saturday, Nov 15, 2008 at 22:34
Saturday, Nov 15, 2008 at 22:34
Before I put the 33 muddies on the paj was running AT's and I got 10lt per 100k's out of it. (3Lt V6 93 NH) with the muddies, is around the 13-14 now.
AnswerID:
335442
Follow Up By: LOUNGE GECKO - Monday, Nov 17, 2008 at 10:43
Monday, Nov 17, 2008 at 10:43
thanks for the back up Jo. didn't think any one believed we are able to get that kind of fuel economy. obviously that is daily driving. I was travelling a lot to and from work sites throughout S.A. in the Patrol when I got the 10s, but can't see why I can't get the same economy out of the pajero considering lighter rig and at this stage it is still fairly factory apart from better exhaust from extractors back. ( extractors are next on the list) I have always found in all vehicles I've had that put a exhaust system to get the gasses out in a hurry improves power and economy. I.e. EF Falcon wagon set up for towing a double axle caravan I did for a mate. Heavy duty standard hight
suspension all round, a big hayman reese to pack, extractors into a uni cat and dyno max exhaust on 2 and a quarter pipes, A Home made cold air intake, transmission cooler. On dyno went from 94 KW to 112 KW, Bolt on power. When not loaded up that thing went like a super car, He was very happy with economy with out having to nurse it. I figure it must have been all about the air flow, modern car computers do learn and adjust to driving style and air flow etc....
FollowupID:
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Reply By: Member - Mike DID - Sunday, Nov 16, 2008 at 19:00
Sunday, Nov 16, 2008 at 19:00
When I changed from 3.0 Pajero to 3.5 Pajero, my fuel consumption DROPPED by 15%.
AnswerID:
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Reply By: LOUNGE GECKO - Monday, Nov 17, 2008 at 10:01
Monday, Nov 17, 2008 at 10:01
ole mate gae me a Fuel max votex creator thingy to try, it is a cheaper version of a hyclone, made in canada. I'll wack in in and give it a few tanks around town to give the ECU time to adapt. then I'll post the outcome. Any one else tried this type of deal in their rigs? what sort of success rate have you had? This fuel max looks a bit fiddly to install as you hae to bend it to your own specs.
thanks to all for response, been impressed with the speed replies came and the real content of replies, ( no technical guru talk ). see yall
AnswerID:
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