Driving in a tailwind will definitely improve economy. This is something to look out for when trying to do a fuel economy comparison. You could be equally loaded in both highway runs but a change in the wind direction and speed can have an effect on your fuel economy.
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Improving fuel consumption - 95 Series V6 petrol 3.4
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To keep stock standard including standard road Tyres. If modifying noore then two inch lift, only use mud Tyres if really needed otherwise stick to ATs, obviously keeping it Micky mouse in the servicing department. Run higher tyre pressures, no bull bar if not needed, roof rack, rear wheel carrier, draws in the rear etc. these are the things that will help keep it down but people need to realize when buying a petrol 2+ tone 4wd it's gunna use the juice. If you need all the gear then your going to pay for it in fuel use. Diesel not so bad but will still raise the L per 100k either way just not so much in a diesel....that's why we sold our V8 statesman and went to a Yaris for the wife to buzz around in so I wasn't running two thirsty cars. But we are lucky and only do short klms to n from work..., cheers SteveFace lift 150 Prado V6 auto. No mods yet
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Originally posted by kiwiinmelbourne View PostSo if we had to put it in a nutshell, what things will give better economy, what would you list.
In point form?
eg
1.
2.
3.....
Driving style / acceleration
Highway speed
If towing
Brakes issues / seized
Wind direction
Tyre/lift size
Roof rack
Load / cargo
MAF / Air filter condition
Engine oil viscosity
Diff ratio
Fuel octaneglen_ep - engineered, 4" lift, 33" 255/85R16, lockers, 4.88 ratios www.pradopoint.com.au/showthread.php?17237 www.youtube.com/user/glenep www.fb.com/groups/ToyotaPrado90
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I recently added 235/85R16's 32" to my 1999 2.7L petrol 95 series.
Prior on the standard size rims, for a highway run I would get about 12L/100km.
Last weekend I drove to a National Park nearby uphill on a highway run again and finished up with 12.67L/100km so I was pretty happy to not have lost much fuel economy with the bigger tyres.
SAM[I]Maroochydore, Sunshine Coast, Queensland[/I]
1999 Toyota Landcruiser Prado RV 4cyl 2.7L Manual, Lifted 2-3" on Dobinson Springs & Shocks, Cooper STT Max Mud-Terrains in 235/85R16 all-round 32", Custom no Bullbar winch mount with Runva 11XP Winch, Black Sliders, 10000 Lumen, LED Lightbar
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Originally posted by kiwiinmelbourne View Post......So if we had to put it in a nutshell, what things will give better economy, what would you list.
In point form?
eg
1.
2.
3.....Originally posted by glen_ep View Post......It's going to be quite debatable, but here's my list from major factors to least:
Driving style / acceleration
Highway speed
If towing
Brakes issues / seized
Wind direction
Tyre/lift size
Roof rack
Load / cargo
MAF / Air filter condition
Engine oil viscosity
Diff ratio
Fuel octane.....
Driving style is the single greatest variable.
Keep your MAF really clean. Clean the air-filter and replace it regularly. Use good-quality spark plugs. Clean the throttle body. Get the injectors cleaned with high-pressure (not a bottle of Wynns in the tank.)
Overall I am pretty much getting 15l/100km around town now - and reasonably happy with that. The other mods - synthetic oil, water-injection, headers/better exhaust etc - have not been completed as yet. Once they are - will keep updating this thread.......and its always good to see what others have done to improve their fuel economy as well
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If you own a 4 speed automatic V6 petrol 4wd that’s shaped like a giant brick forget about trying to improve fuel economy. Nothing you can do apart from keeping it stock standard will make much of a difference. Except for maybe ripping out all the seats except for the driver’s seat to lighten it up further. People claiming excellent highway figures as though it’s the norm were for a once off experience with a huge tail wind behind them on their trip, or their calcs were wrong, or they weren’t driving at the speeds they claimed & were actually doing 80kmh instead of 100kmh on the most perfect road, or all 3 combined.Last edited by Brett1979; 09-12-2020, 11:49 AM.2005 120 series V6 Grande, 2 inch susp lift (King/EFS combo), 32 inch MT’s, Safari Snorkel, rear diff lock, breathers, Light Force spotlights, UHF, dual batteries.
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