Fuel economy

[sierra]

Do you know if it's the same with the V6 Sierra?

Good question Homer but I can only guess it's different in all the settings to match the V6 torque curve.
I haven't driven a Triton diesel auto but I have driven the V6 auto and thought it was a match made in heaven, especially compared to the V6 manual. Silky changes, very low revs and 0 - 100kph seemed effortless on a wall of torque with the motor almost idling at a cruise. Loved it! Quiet too.
The 3.2, 2.5 and 3.5 autos all have the same ratios in the box, even the diff ratios are almost identical.
V6 4.3
3.2 with alloy wheels 4.1
3.2/2.5 with steel wheels 3.917
All autos have the same oil capacity so you would think it's just software if there's any difference?

[Homer]

Yes I suspected so too mate thanks.......so it is another one for the propeller heads.
Might just leave this side alone as nothing worse than shift point problems in an auto.

[snowman]

adjustable software would be a great solution to this..........

thanks everyone for your comments, i'll make some enquiries myself, any help is appreciated.

anyone know of an auto tranny place that may specialise in mitsubishi gear - anywhere - nationwide?

[Quinny23]

anyone know of an auto tranny place that may specialise in gear - anywhere - nationwide?

current.com/tags/88875344_transvestite-wives/ (Warning)

....

[snowman]

does she come with adjustable software.....?

[Quinny23]

I believe a few items are adjustable... depends on how much cash and how far you're willing to go..

[daryn]

Okay I just did a fillup this arvo before tomorrows highway run and I got:

Around town
Triton Std Computer - 15.2l/100km
Fuel Calculator - 14.2l/100km with adjustment of x 1.07 because of tyre size ( I think I use this figure 265r75/17)

So I would have to say that the Triton Fuel computer thingy is 100% accurate, but neverless my economy is crap.

I am still far from understanding this torque lock up techo talk, but would turning the O/D off around town do anything ? This could be a really silly question, but I am going to try it anyway.

[sierra]

I am still far from understanding this torque lock up techo talk, but would turning the O/D off around town do anything ? This could be a really silly question, but I am going to try it anyway.

I would use the overdrive all the time if you want to get the best economy. O/D off usually produces a more agressive late shift apart from leaving out top gear.
Someone borrowed my nephew's Surf once and toured the SW of WA. When they got back it was out of O/D and that's the way it had clocked about 3,000km mostly sitting on 110kph because they didn't know about such things. Luckily they hadn't touched the 4x4 button and it survived.

[daryn]

Today I did my Freeway trip.

420km
aprox. 360km was freeway, rest bolting around outer Sydney on 80k roads

10.64l/100k

nb. I noticed that driving down with out the lid on was about .5l/10k higher in fuel in coming home with a lid on, coming home I was doing higher speed, morning trip was at 6am, home was 5pm to 7:30pm.

Snowman, how does that compare for you ?

[snowman]

daryn,

well as you can see on my spreadsheet all my mileage is pretty bad except for my high speed run from canberra - which is the only encouraging bit keeping me going for a solution

i assume by the 'lid' you mean the ute cover was on one way and off returning? again the actual speed you were doing seems to make a difference. typically 80-90 klms is the most econmical - a speed that i do alot around sydney on major arterials and motorways (i am allergic to bumper to bumper and avoid at all costs), so the fact that my best mileage - by a long way- was done at CONSISTENTLY at or above 115klm/hr says something about this auto transmission theory!

look 10.64l/100 is pretty good but that run to sydney from newcastle is probably as good as it gets in the type of mileage motoring you can do. usually consistent highway speed is better than around town although diesels don't tend to change as much as petrols as they tend to rev harder on the freeways. for example my troopy was about the same mileage no matter where or when, freeway or around town.

just cant get a grip on this car yet. although i will say this - sierra mentioned the airflow due to ARB bullbar etc. you can see i ran a few tanks through it before any accessories, except for the bigger tyres, were fitted and the milage was bad then. so i feel 'airflow' can generally be ruled out as a culprit.

[sierra]

daryn,
just cant get a grip on this car yet. although i will say this - sierra mentioned the airflow due to ARB bullbar etc. you can see i ran a few tanks through it before any accessories, except for the bigger tyres, were fitted and the milage was bad then. so i feel 'airflow' can generally be ruled out as a culprit.

Nothing to do with your problem snowman but an interesting article 1 and 2.

http://autospeed.com/cms/A_111510/article.html

http://autospeed.com/cms/A_111511/article.html

[daryn]

I expect to be about maybe 1 to 2 maybe 3 above the manuals but 5 to 7 hurts, so I am too waiting anxiously to hear about any tranny tips.

My argument when I bought this (work vehicle) was economy 9-10l/100km, that has now been thrown out of the window because I got the auto as other ladies (staff) drive it.

[snowman]

daryn

are you a member or signed to any other mitsubishi websites you could ask the question on?

even if we can find some pajero owners with info on mitsubishi tranny specialists (ours are not far removed from their's particularly in superselct) it might help.

[daryn]

na, I'm a newtriton devotee, I lost my virginity here , forever faithful.

[Homer]

Nothing to do with your problem snowman but an interesting article 1 and 2.

http://autospeed.com/cms/A_111510/article.html

http://autospeed.com/cms/A_111511/article.html

Great so now I have to drive like a taxi driver

[daryn]

Something to add which is positive I think at least for me in getting to understand this, yesterday driving along the freeway I stopped halfway and disconnected the DP-Chip and drove for a while and watched the fuel economy go up, so the DP-Chip got plugged back in.

The more I look at what I have done I can only put it down to 3 major mods to why the fuel has gone up, Bar, tyres and EGR mod.

Also, realistically what should I be getting with an auto 3.2 ?

Sticker says 9.9 for an auto, reality could be 10.9 or 11.9 for my short stop start drives to work and back easy.
Add DP-Chip drop back to either 9.9 or 10.9 driving conservatively.
Add Bull bar and winch (nearly 100+kgs to front) and go up to 11.9-12.9
Add bigger tyres, more aggressive tyres which also alter gearing 12.9-14.9 ?
Add EGR blanking plate, have no idea of effect, should it go up or down ?

Already drove around 100k's today after refilling last night and it is roughly at 14.5 around town.

Anyway just throwing some thoughts around in my head.

[Quinny23]

Just to rub some salt into that wound... Im getting around 12 - 12.5 with lift, 33's, steel tray, bar and winch etc... And this would drop if I lived further from work as my car never gets to operating temp till I'm either 3/4 to work or home...

Do you have a moded exhaust?

[daryn]

Na Quinny, exhaust is std, I dont think I will be doing any mods for a while as everything I have done has pushed the economy up.

I was out around Ingleburn and Penrith yesterday blipping around, long stretch 80 k roads and it was sitting on about 10l/100km in that scenario.

[ML-VR08]

Exhaust makes all the difference! You will see a reduce in consumption straight away!!!!

[Quinny23]

Even if you just get a less restrictive muffler... IE the lux comes with a 2" (2.5 or 2.75 is preferable) already so just removing the cat and muffler for an auto makes a big difference... Manuals prefer the 3" bore...

[ML-VR08]

I still have the CAT on mine - and 3" all the way no mufflers.

[sierra]

Great so now I have to drive like a taxi driver

Maybe driving style is a part of the problem because I've never regarded taxi drivers as a particularly slow breed of driver?
However, on a trip most of the time it's just cruising at the speed the limit using the CC so that levels the playing field.
I drove down to Bridgetown in WA yesterday and filled up again just now.
626.9km and she took 48.06L which is 7.67L/100km
27L still in the tank which gives a range of 978km, so close to the magic 1,000km!
As I left Bridgetown I noted the distance to Perth and the odometer was within 2km of that as I passed the city centre on the freeway, so that's less than 1% error. Much better than the speedo no doubt.

[trickydevil]

after 70000km, Bullbar, winch lights on the roof & bullbar, side & rear bars and a few hundred kilos of survey gear and timber pegs in the boot + roof racks i still get about 10.5lt/100km or there abouts on a highway run. or about 615km off 60-65lt. I'm happy with that. Was about 8 when i first got it without any add ons.

I wonder what will happen when my 33's finally go on in 3 weeks.

[chick_magnet_0001]

of course your utes going to use more fuel when you have all the extras but only a little maybe 1lmore, id put it down to driving style, i knows it hard but slow down 110-115 on the high way is the reason your using so much fuel, mines manual and i tow a 500-600kg single axle trailer for work and if i get over 9.5l per 100ks thats bad for me

best advice i can give you is lose your lic so your on good behaviour you learn to drive much slower very quickly the only positive is the great fuel economy

anyone want to take my advice

[jimmy]

i did find that cruising gently down a hill in 5th just after filling up gave me 4l/100km, but then i had to go up hill....d'oh.

i seem to be getting around 9/100 which keeps me happy, makes me realise what a thirsty pig our prado is