Mazda bongo 2.5 v6 petrol mpg?

What's the MPG like? Can I use chip fat and veggie oil? What about LPG?

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windsurf 1
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Mazda bongo 2.5 v6 petrol mpg?

Post by windsurf 1 » Tue Dec 08, 2015 10:33 pm

Hi there can anybody help?
I have not long purchased a very nice white Mazda bongo 2.5 v6 petrol auto!
I am a windsurfer and fully intend to chuck my kit in and head to the coast as much
as possible but there is a problem..... I have used it for work most days and I can only
ever managed 24 mpg [/b]:shock:, has anyone got a 2.5 v6 and has taken it on a 3 hour + run to the
coast and if so what mpg can I expect?
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Re: Mazda bongo 2.5 v6 petrol mpg?

Post by Bob » Tue Dec 08, 2015 10:58 pm

Hi, and a warm welcome to the Forum.

Your MPG sounds about right for commuting, you may get near 30 on a good day.

Quite a few go for a LPG conversion but you'll need to do the sums based on your mileage and how long you plan to keep Bongy.

It is important to bear in mind the purchase price (compared to, say, a VW), low depreciation and all round versatility of the Bongo when doing the sums. :wink:
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Re: Mazda bongo 2.5 v6 petrol mpg?

Post by cmm303 » Tue Dec 08, 2015 11:05 pm

Welcome to the forum.

mpg sounds in the right ball park for commuting, not bad if it is lots of town work. On a long run at steady speed it will be a little better, higher up in the 20s. It all depends on your speed! Keeping around the 55-60 mark pays dividends. It is a frequent topic on here. This thread looks like a good start: http://www.igmaynard.co.uk/bongo/forum/ ... 12&t=68991
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Re: Mazda bongo 2.5 v6 petrol mpg?

Post by Joe_anne123 » Tue Dec 08, 2015 11:47 pm

24 mpg sounds pretty good for commuting. I've done longer runs in mine and got not much over 25. As someone wise once said, if you're looking for fuel economy you've got the wrong vehicle ;)
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Re: Mazda bongo 2.5 v6 petrol mpg?

Post by Jim the Box » Wed Dec 09, 2015 12:25 am

We were stuck in a huge que behind a tower crane on the A9 in Scotland took us 60 miles to finally get near it to overtake it, travelled at approx 40-45 mph, did 26 mpg on LPG, running on LPG achieves normally less mpg than running on petrol so would expect 28 mpg if I had been running on petrol, I would be very surprised if anyone managed to get 30 mpg on a V6, normally I drive at 60mph I would only achieve 23 mpg on LPG.
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Re: Mazda bongo 2.5 v6 petrol mpg?

Post by weebrian » Wed Dec 09, 2015 11:24 am

I've had my V6 for five years and have never even dreamt of getting 30mpg from it. Most I have ever done is about 23mpg with a very light foot on a long run. normally I get 18/20 around town. On gas I get very slightly less but at present I'm only paying 39.9p/L so that is neither here nor there.
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Re: Mazda bongo 2.5 v6 petrol mpg?

Post by Jim the Box » Thu Dec 10, 2015 9:33 am

Totally agree Brian, 56mph-26mpg, 60mph-24mpg, For every mile per hour over 60 the mpg goes down really rapidly, I just paid the £1200 for the conversion to LPG, forgot about the money I'd spent, purchased LPG at the garage, around £40 for 260 miles (a bit less than that at the moment) and never gave mileage another thought.
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Re: Mazda bongo 2.5 v6 petrol mpg?

Post by mikeWalsall » Thu Dec 10, 2015 11:17 am

Some people suggest working out LPG conversion costs in relation to annual mileage to judge the economics of the conversion..

I pay 47p a litre for LPG .. the conversion costs are long forgotten when you pay £35 to fill your 75 litre tank .. !!
JAL Mushroom roof,12/240v, fridge, cooker, sink, LPG V6 .. (written off @ £5500 Nov 2016)
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Re: Mazda bongo 2.5 v6 petrol mpg?

Post by mantaJim » Thu Dec 10, 2015 12:02 pm

Best I've done on a long run is 24mpg. Round town I get 19mpg on average.
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Re: Mazda bongo 2.5 v6 petrol mpg?

Post by redz79 » Thu Dec 10, 2015 9:03 pm

hi
our V6 does about 22 to the gallon on Vboost petrol and about 20mpg on the regular petrol, luckily we have lpg aswell that puts a real big smile on your face when you fill up, get it on the gas.
rgds Ian
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Re: Mazda bongo 2.5 v6 petrol mpg?

Post by windsurf 1 » Fri Dec 11, 2015 8:46 pm

Hi everybody,
Thank all very much for the advice... and thank you for the welcome messages!,
moving forward i just plan on loading my windsurfing kit and cruise to the coast asap
and see how the fuel works out. To be honest if it cost me more than my car, i don’t
really care as the bongo is so cool. I am new to all this so i have many more questions,
“ i hope you don’t mind” ?
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Re: Mazda bongo 2.5 v6 petrol mpg?

Post by Bob » Fri Dec 11, 2015 8:49 pm

Ask away, you'll find a friendly and helpful crew here.

By question five, though, we will start taking the p... :lol:

Which part of the coast do you visit?
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Re: Mazda bongo 2.5 v6 petrol mpg?

Post by windsurf 1 » Fri Dec 11, 2015 9:05 pm

I go to Wales a bit, a little surf spot called Llanrysted, but when I am not land locked in Birmingham I windsurf loads in Weymouth ( Portland Harbour ).
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Re: Mazda bongo 2.5 v6 petrol mpg?

Post by BongoBongo123 » Sat Dec 12, 2015 3:52 pm

Probably common knowledge but these things can effect your MPG on a petrol (there could be more):

Air filter cleanliness
Spark plugs
Oil
Tyre pressures
Tyres themselves (some fair worse than others on fuel efficiency)
Badly aged spark plug leads (the sparks cause deposit build up/ spark resistance)
Driving style - 55mph will give you the best mpg, at 70mph expect 20-25pct less mpg

Might be worth you putting a can of BG44K through the system (in the petrol tank so it is very easy). I rate it for petrol and Diesel (Diesel version is BG244) It cleans deposits from valves, combustion chambers, pistons, fuel lines etc. Read up on it the vast majority of users notice a difference, of course use it at your own risk/consideration but I rate it highly with zero negative effects.

Available on Amazon or Ebay (£23.00):

https://www.bgprod.com/catalog/gasoline ... m-cleaner/

Not saying you will end up with 36mpg ! But it all helps.

I use Millers Petrol/Diesel Eco max as well in every tank. This is less potent than the BG44K kind of cleaner (it is an octane/cetane booster with cleaners so akin to putting 97 RON petrol in or Supreme diesel but a MUCH cheaper way of doing it, you just poor a measure in the tank, easy.) but I find my vehicles run smoother and quieter with the suggested amounts in the tanks. It is not a small difference on the Bongo. (quieter, smoother and more power)

Again Amazon or Ebay (about £10) :

http://www.millersoils.co.uk/automotive ... sector=Car

Gives you something to think about.

I get up to 43MPG on a long run with a diesel Bongo. Significantly less on short stop/start journeys but I do not do many of those in the Bongo thankfully.

I bet you could eat your dinner off the insides of my engines. :lol:
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Re: Mazda bongo 2.5 v6 petrol mpg?

Post by the1andonly » Sun Dec 13, 2015 11:17 pm

Is the Bongo particularly bad for fuel consumption remember its a 2 ton brick
I ran an Audi a6 2.6 V6 (96) for 10 years.
fuel consumption varied between 21 and 25mpg town, towing, topbox, no topbox.
THe Audi 100 (87, 7years) a 5 cylinder 2.2l was much worse 19 towing 22mpg max
Don't compare it to a modern engine. only consider brim to brim info
not that i'm refering to VW "engine management" systems.
Do car computer MPG match with Brim to brim?
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