Isuzu Trooper Owners Club UK™

rowieboyz · * Joined: 04 Feb 2008 Posts: 24 Location: Dartmoor

Hi guys
I was just wandering how much of a difference to my MPG would changing the filters and oil make? After tracking down the previous owner of my bighorn,it seems this truck has not had it done in a very long time. my mpg seems very poor at the moment and i'm driving with a very light foot!! (£40 = 120 miles roughly) I knew when I got this car it was not going to be an economical runaround but I was hoping for better than this really. I'm going to explore all avenues to make it a little better on the go go juice as I have already decided this is the best vehicle I have ever owned.
Sorry for all the newbie questions.

Jase

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rallymarshall · Posted: Sun Apr 27, 2008 20:02 Post subject:

on a quick workout your getting about 15.1 to the gallon
id say deffo change the oil and air filter and it should make a difference, if it dont id say there summat wrong somewere
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dxmedia · Posted: Sun Apr 27, 2008 20:38 Post subject:

Don't change the filters and oil to improve the economy, change them to stop the engine dying - if you leave for too long then thick oil is going to kill the bottom end and turbo (same with any diesel engine)
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rowieboyz · * Joined: 04 Feb 2008 Posts: 24 Location: Dartmoor

Cheers guys

I knew that it would help to keep the engine in good shape so I was going to get it done anyway,but I was wandering if it would help with the economy too. It will be done as soon as possible that's for sure. Thanks for the reply guys I really appreciate it.

Jase

dxmedia · Posted: Sun Apr 27, 2008 21:43 Post subject:

If the fuel filter and air fliter are really blocked then that might have quite a negative impact on the economy.
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Hobbynut · ** Joined: 06 Nov 2006 Posts: 97 Location: Hull..E Yorks

I have a 1995 Monterey 3.1 TD with 93,00 on the clock and I change the oil and filter every 2500 and only use a basic mineral oil. I get anything between 30 and 33 mpg..the best it ever did was 34.1.. The worst was 29.2 but then I did tow a 2 ton Hobby caravan for about 10 miles
Cheers
hobbynut
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1995 Vauxhall Monterey LWB 3.1 TD... 2012 Sterling Eccles Sport 524 caravan

It wasn't me...The big lads did it and ran away

dxmedia · Posted: Wed Apr 30, 2008 8:00 Post subject:

It's flat round your way isn't it Laughing

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Hobbynut · ** Joined: 06 Nov 2006 Posts: 97 Location: Hull..E Yorks

It's as flat as a pancake, which will make a difference..it will be getting extensive use on the North Yorks Moors in the not too distant future so I wll see what effect that has
Cheers
Hobbynut
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1995 Vauxhall Monterey LWB 3.1 TD... 2012 Sterling Eccles Sport 524 caravan

It wasn't me...The big lads did it and ran away

dxmedia · Posted: Wed Apr 30, 2008 10:31 Post subject:

I can 'just' get 25 out of mine on a really gentle 65mph run... hills are a killer
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rangielover · **** Joined: 17 Jul 2006 Posts: 276 Location: West wales

i get 26-28 all the time. hit 32 on a steady decent from glasgow to south wales 70mph for 6 hours

jonnie · Posted: Sat May 10, 2008 18:34 Post subject: fuel

i never get much out of it £50 doesnt last long but its hilly round here .
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Philp · Posted: Sat May 10, 2008 19:19 Post subject:

I have lead feet so my mileage isn't great. It is, however, amazing what a good service will do to a neglected motor. I'd change the oil/filter twice in the normal service interval (so after a couple of thousand miles) to make sure it gets a good clean out. I'm not a great fan of engine flushes as they can loosen all sorts of crud. You may also find blocking off the EGR valves help.
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Phil

96 or is it a 98 Isuzu Bighorn Lotus

AD · Posted: Sat May 10, 2008 21:02 Post subject:

servicing has never increaced my mpg Sad

(but it's essential Wink

)

Using a good quality light engine oil will reduce friction within the engine, increasing mpg slightly Very Happy

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rowieboyz · * Joined: 04 Feb 2008 Posts: 24 Location: Dartmoor

Thanks for the replies guys, I will let you know how I get on.

Jase

P.S. If any of you guys can think of anything else that might help with fuel consumption I will be grateful.