Increasing mpg (5 Viewers)

[robbie]

Useing the a/c versus having the windows open. Which uses more fuel? It depends on the speed one is going. If I rememger right after about 25-30 MPH the drag on the vechicle(using more fuel) with the windows open is more then the engine driving the a/c. So it is more cost efficent to run the A/c After about 30 MPH. Drivng highway speeds, you will save money using the A/C over opening the windows and sun roof.
I would agree with most on the diesel swap, It would have to be at a time when I was getting ready to put in a new engine (either repower or rebuild), at any other time it would not make sense to me to waste a good engine, even with selling off the old one. It would be hard to crunch the numbers with diesel vs fuel prices being almost even. Here in the states watch as diesel fuel will get more than gas prices in the next couple of years when you have more reformulation of the diesel with no sulfur and exotics to meet EPA requirements. Even with Biodiesel, it will not be worth it when the EPA steps in an regulates this area also.
Yes I would bet you would see an increase in fuel milage with replacing the O2 sensors. You state 8 years but how many miles have you driven in those 8 years? Nice thing about the Iridum plug is that the gap does not wear, is good for 60-100 k miles. the gap (if you get the right plug) is acuttuly .040 not .031. Which will get you a better spark with the stock system. Just my 2cts.
The best fuel saving method is to drive some thing else if your cost benifit works this way. Maybe take the bus, ride a bike part way then a bus or train. I am looking at this my self. Here in the states we do not have a great mass transit system for the whole country, just in certain parts of the country.
good luck with your choices. later robbie

 

[MTNRAT]

Park it.
Cheers,
Sean

 

[Gold Finger]

Gold Finger

What is the cost of diesel in the UK? and what sort of fuel economy do you get? My guess is the cost of a diesel conversion would be about £6,300 for somebody in the US excluding any shipping--it seems like most of these conversions are done in Canada. Curious to see where a financial break even point would be with UK prices.

Regards

Here are my fuel consumption figures taken since the end of june but one or two are missing I drive usualy very briskly so I am heavy on the breaks and accelorator, it is very hilly here with narrow country lanes I also live off road. I also have to replace injector nozzles which should improove things as will calibrating the injector pump and fitting of an intercooler.
Figures are imperial gallons/miles 1imp gallon = 1.20095 gallons (US liq.)
20.6
20.6
19
21
17.3
18.7
19.8
17.0
16.8
16.0
17.8
17.0
19.2
20.3
17
17.8
19.8
19.3
16.1
Gap
Gap
15.9 ? been at garage hum
16.8

The UK fuel prices can be seen here at
http://www.theaa.com/allaboutcars/fuel/


There would be little point in converting in the UK as there is a preponderance of diesel 80's in any case. What would be worth while in the UK for petrol vehicles is an LPG conversion which effectively halves the running costs, mine of course is diesel in any case.

Diesel engines 1HD-T and 1HDFT and probably 1HD-FTE which is the Dogs Bollocks and electrically controlled and used in the 100 series, are available from a number of sources here such as breakers or engine recondition engineers.

If some one wishes too inport from here I could try to source one for them.

 

[landtank]

1HD-FTE which is the Dogs Bollocks

is this an endorsement?

 

[honk]

Nothing finer than the Dog's Bollocks.

Ask the dog.

 

[Gold Finger]

is this an endorsement?

The dogs Bollocks is the English vernacular term for the best and it may be considered an endorsement. This engine I believe is electronically managed and should give the best results but fitting it may not be strait forward because of it Engine management. This is a 24 vale engine as is the 1HD-FT and all of them are Direct injection and do not normally use there heater plugs unless it is extremely cold.

 

[IdahoDoug]

Locally, diesel has been more expensive than even the very finest gasoline for some time. Currently, it's $2.73/gal where Chevron's Premium gasoline is $2.48/gal. It has been my personal belief for many years that here in the US a large SUV diesel costs more per mile to operate than it's gasoline powered version. In 2001 I was on the verge of ordering a diesel Excursion. I came home from the dealer with all the figures - right down to the service costs (shorter oil intervals, more expensive filters, fuel filters, etc) by the book from the Service Department. They were kind enough to provide me all their charges for both versions.

In the end, it was FAR (not even close) more expensive to operate the diesel version. Atop this, I added the negatives of the incredible diesel noise, vibration, fumes and smell of diesel fuel.

DougM

 

[Kalawang]

The dogs Bollocks is the English vernacular term for the best and it may be considered an endorsement. This engine I believe is electronically managed and should give the best results but fitting it may not be strait forward because of it Engine management. This is a 24 vale engine as is the 1HD-FT and all of them are Direct injection and do not normally use there heater plugs unless it is extremely cold.

Posts like these are what make my interest here grow.

 

[rgsiii]

Gold Finger,
If my math is correct, going from Imp. Gallons/mile to miles/US Gallons, is your fuel economy somewhere in the mid to low 20'sMiles/US gallon?

With your fuel cost being more than 2x ours, it might start to become economical to do a conversion at some point.

 

[Gold Finger]

Gold Finger,
If my math is correct, going from Imp. Gallons/mile to miles/US Gallons, is your fuel economy somewhere in the mid to low 20'sMiles/US gallon?

With your fuel cost being more than 2x ours, it might start to become economical to do a conversion at some point.

ine is Diesel.

Excellent Label, this is from one of the Real Ale bottle conditioned beers brewed in this country also available on Draught this particular one is quite strong. I did not realise some of our beers where available out there. Some of the smaller breweries have some quite amazing and vernacular names for there brews and some of them are quite apt.
http://www.camra.org.uk/SHWebClass.ASP?WCI=ShowCat&CatID=1

Yes you are correct. I have the mileages and costs of nearly all my returns so the ones I just published could have those included if any one wants me to. I am a little disappointed with my figures and I have bought injector nozzles ready to fit and will have to have my injector pump recalibrated. I would expect and be happy with mid 20’s. I do drive fast and generally overtake most traffic on normal roads much too there disapproval, people usually do not like being out driven by large 4x4’s when they are in much faster cars. Theoretically I should be able on a strict 56mph to achieve 30.1mpg imperial and at a strict 75mph 19mpg imperial the latter engines would be better than that. That is Toyota’s own government approved figures for this vehicle with the 1HD-T engine in 1993. It would be difficult for me to directly compare the latter vehicles for at some time they changed the methods of collecting and publishing government fuel consumption figures.

 

[rgsiii]

Unfortunately, at least where I am located the only way to get UK beer is to go there. I pulled the label off of the internet.

I did really enjoy being at pubs in England and Wales--Great food like Gammon steaks and other things.

Probably, my most memorable experience was being in the Welsh mountains near Snowdonia NP and having some RAF jets fly over at what appeared to be less than 100 metres with a waterfall that was supposed to be about 300 metres in the background. I was too surprised at their appearance to even try to identify them ( I assume they were Tornadoes). Unbelievable

 

[Radd Cruisers]

Wonder if putting on skinny tires and running high pressure would also help increase milage as the factory tires are kind chubby.....

Then put one of those wind damns on the front like those ugly dodges of the late 60s early 70s.

Maybe a wing on the back to take some weight off the tires???


Giggle giggle.......

 

[FJ809496TLC]

Useing the a/c versus having the windows open. Which uses more fuel? It depends on the speed one is going. If I rememger right after about 25-30 MPH the drag on the vechicle(using more fuel) with the windows open is more then the engine driving the a/c. So it is more cost efficent to run the A/c After about 30 MPH. Drivng highway speeds, you will save money using the A/C over opening the windows and sun roof.
I would agree with most on the diesel swap, It would have to be at a time when I was getting ready to put in a new engine (either repower or rebuild), at any other time it would not make sense to me to waste a good engine, even with selling off the old one. It would be hard to crunch the numbers with diesel vs fuel prices being almost even. Here in the states watch as diesel fuel will get more than gas prices in the next couple of years when you have more reformulation of the diesel with no sulfur and exotics to meet EPA requirements. Even with Biodiesel, it will not be worth it when the EPA steps in an regulates this area also.
Yes I would bet you would see an increase in fuel milage with replacing the O2 sensors. You state 8 years but how many miles have you driven in those 8 years? Nice thing about the Iridum plug is that the gap does not wear, is good for 60-100 k miles. the gap (if you get the right plug) is acuttuly .040 not .031. Which will get you a better spark with the stock system. Just my 2cts.
The best fuel saving method is to drive some thing else if your cost benifit works this way. Maybe take the bus, ride a bike part way then a bus or train. I am looking at this my self. Here in the states we do not have a great mass transit system for the whole country, just in certain parts of the country.
good luck with your choices. later robbie

Who said anything about opening the windows?

 

[Gold Finger]

Unfortunately, at least where I am located the only way to get UK beer is to go there. I pulled the label off of the internet.

I did really enjoy being at pubs in England and Wales--Great food like Gammon steaks and other things.

Probably, my most memorable experience was being in the Welsh mountains near Snowdonia NP and having some RAF jets fly over at what appeared to be less than 100 metres with a waterfall that was supposed to be about 300 metres in the background. I was too surprised at their appearance to even try to identify them ( I assume they were Tornadoes). Unbelievable

Well, being hilly and not very far from military ranges we get fighter aircraft over my house most days of the week, some times when they are holding, doing allsorts of acrobatics and mock dog fights, often the wake shakes the house and the windows rattle, I can often clearly see the pilots they are so close, we have had F14’s, Tornadoes, Hawks, Harrier Jump jets flying very close and below as I am on a brow of a hill Hercules Transporters skimming close to the ground. Helicopters of various types pass including Chinooks which passed so close beneath me that I could have thrown a stone at them. It is always obvious when some big show is going to happen in the world because air traffic increases and they fly closer to the ground I guess some may be US Forces. I have an ex military Landover 101 Forward Control still in olive drab I used to camp off road in the mountains in it, I was rudely awoken very late one night I nearly crapped my self as a vehicle drew up out side and a man opened up my cargo door were we sleeping I was prepared to fight to the death at this point but was very much relieved when he wanted to know which unit I was from as they had no intelligence about us. It turned out he was from special forces and was making safe for aircraft landing his vehicle I could eventually see was internally lit with red safety lighting and he coordinated by radio for the helicopters to land to pick up troops who I could eventually see crawling around on the floor near where we where parked up they were all blacked up and armed. The chap who I thought was about to kill us supervised there unloading of weapons shortly followed by helicopter which passed so very close to our vehicle and then landed 30 yards or so away I was quite excited. I have quite a few dealings with the military near here but it has nothing to do with 80’s nor has this but I felt spontaneous to your rely so sorry folks.

 

[robbie]

Oh excuse me, It must be a weight loss thing, sort of putting a plastic bag on to sweat when we had to loose weight (no a/c with no windows down). robbie

 

[crushers]

hello fellow lead foot,

75 mph at 19 mpg seems right on the money with my HZJ75 with a turbo'd 1HZ with Propane Injection on the trip to Pismo and back to Calgary (5400 km)

cheers

 

[FJ809496TLC]

Oh excuse me, It must be a weight loss thing, sort of putting a plastic bag on to sweat when we had to loose weight (no a/c with no windows down). robbie

That's the excess weight I was talking about Robbie. Kidding aside, without going to alot of expense, you can minimize the weight of the 80 and that should improve your mileage a little. If you want to improve your mileage considerably, park your 80 and drive a Zuki.

 

[Kalawang]

In this thread it might be a good thing to see if the stock LC gets better mileage than the lifted regeared big tired LC. Off hand I would expect the stock to be the winner in city stop and go, but in long distance open highway cruising do the big tires produce lower RPM and better mileage ?


Kalawang

 

[LX_TREME]

In this thread it might be a good thing to see if the stock LC gets better mileage than the lifted regeared big tired LC. Off hand I would expect the stock to be the winner in city stop and go, but in long distance open highway cruising do the big tires produce lower RPM and better mileage ?


Kalawang

What is this some kind discrimination?
How bout some lowered 80's with 23x11 wheels and 305/35/23?
Will that also bad gas mileage to compare with stock LC?

 

[HZJ60 Guy]

Want better MPG, put one of THESE in your 80.

1995 1HZ/H55



TB