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getting better mpg

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27 Jul 2022 17:53 #244244 by danielbz
getting better mpg was created by danielbz
hello

i have seen some suzuki jimny owners with suzuki jimny engine 1.5 with 40mpg fuel economy,
how can this persons achieve this? most  i can do is 29 mpgs

regards

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27 Jul 2022 20:06 #244246 by 300bhpton
Replied by 300bhpton on topic getting better mpg
Mpg will depend on how you drive, where you drive and any mods you have.

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27 Jul 2022 20:17 #244247 by danielbz
Replied by danielbz on topic getting better mpg
im driving conservative grandpa style

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27 Jul 2022 21:30 #244248 by 300bhpton
Replied by 300bhpton on topic getting better mpg
29mpg does seem low. Is this from the OBC? What speeds do you drive at?

Are you in the U.K.?

I’ve never seen more than 39mpg from mine. But I’m on All Terrain tyres these days and a few mods. Normal running about I see more like 33-34mpg. Running at over 60mph on dual carriageways seems to limit mpg. But sedate running on A and B roads should see high 30’s.

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27 Jul 2022 21:49 #244249 by danielbz
Replied by danielbz on topic getting better mpg
im using a non traffic road, i drive 50 mph when going uphill and i go downhill in N, im not in the UK, what mods do you have?

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27 Jul 2022 23:11 #244250 by DrRobin
Replied by DrRobin on topic getting better mpg
Are you imperial or US gallon? Imperial gallon is equal to 1.2 US gallons.
Also what octane rating do you have and how much Ethanol?

The differences are small but might add up.

Robin

2011 Blue Jimny SZ3, Hankook Dynapro ATm, Radius Arm protectors, Xtrons Head Unit, DAB, 360 degree Camera, TPMS, K&N, Bosch Aerotwin blades, LED lights, boot light, parcel shelf, boot box, dash box. Osram Nightbreakers, CTEK Battery Sense, Front & Rear Recovery points, CB Radio.

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28 Jul 2022 02:23 #244251 by danielbz
Replied by danielbz on topic getting better mpg
US gallon
91 octane, no ethanol

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28 Jul 2022 03:31 #244252 by Lambert
Replied by Lambert on topic getting better mpg
Driving down hill in neutral that is coasting is not good. First it reduces your control of the vehicle as you have no engine braking effect which in turn increases reliance on the wheel brakes which can cause them to overheat. Secondly the engine will revert to idle in neutral which requires it to burn fuel, when going down hill in gear the ECU detects this and virtually stops fuel supply, the effect may be small but it does increase mpg.

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.

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28 Jul 2022 04:40 #244253 by Old Neil
Replied by Old Neil on topic Re:getting better mpg
Can you use 91 in a series 4 my series 3 staits minimum 95 ?

Sent from my SM-A336E using Tapatalk

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28 Jul 2022 07:06 #244254 by Doctorchris
Replied by Doctorchris on topic getting better mpg
Your US gallon figure converts to nearly 35 mpg in Imperial measures, which is better.
I often achieve 45 mpg but that is on smooth tarmac, change up quickly through the gears and keep speeds low.

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28 Jul 2022 07:47 #244255 by saxj
Replied by saxj on topic getting better mpg

Driving down hill in neutral that is coasting is not good. First it reduces your control of the vehicle as you have no engine braking effect which in turn increases reliance on the wheel brakes which can cause them to overheat. Secondly the engine will revert to idle in neutral which requires it to burn fuel, when going down hill in gear the ECU detects this and virtually stops fuel supply, the effect may be small but it does increase mpg.

Great theory, but in practice coasting in neutral uses less fuel.

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28 Jul 2022 08:17 #244256 by Bill Portland
Replied by Bill Portland on topic getting better mpg
My very standard gen 4 still achieving a lifetime average of over 42mpg (UK). No motorways near me but otherwise regular A & B road driving. I rarely cane it though. 

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