HDJ81 fuel consumption test run
- Thread starter crushers
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Wayne, you're getting what I'm getting on the highway at about 95 kph. But most importantly, have you factored in tire size and do you know your odometer is accurate?
To all the Aussies, I am seriously beginning to think that you are getting fuel at and excessive temperature, high temp fuel will have much less energy than that served at 15C. Or maybe your diesel quality is much poorer than ours!
One thing to remeber as well is that 1HZ indirect injected normally aspirated engines are by design a bit less fuel efficient than the 1HD-T direct injected, turbo-charged version.
I've been getting consistently around 10.5 - 11 litres per 100 km for the whole summer doing medium short runs (no bumper to bumper or strictly city in that, though, most runs are about 30km or so).
Pure highway at a mellow 90-100 returns about 9.6 to 10 l/100 (based on about 6 test runs) and I've even attained 9.4 l/100 once (about 32 miles per imperial gallon!)
Finally, pure highway at a constant 115kph returned a fuel consumption figure of approximately 11.8 l/100 (one test run)
Maybe we should take pictures of our odometers, our tires, fuel stations and fill-up figures, level of fuel in the filler neck... Maybe that would settle the controversy!
To all the Aussies, I am seriously beginning to think that you are getting fuel at and excessive temperature, high temp fuel will have much less energy than that served at 15C. Or maybe your diesel quality is much poorer than ours!
One thing to remeber as well is that 1HZ indirect injected normally aspirated engines are by design a bit less fuel efficient than the 1HD-T direct injected, turbo-charged version.
I've been getting consistently around 10.5 - 11 litres per 100 km for the whole summer doing medium short runs (no bumper to bumper or strictly city in that, though, most runs are about 30km or so).
Pure highway at a mellow 90-100 returns about 9.6 to 10 l/100 (based on about 6 test runs) and I've even attained 9.4 l/100 once (about 32 miles per imperial gallon!)
Finally, pure highway at a constant 115kph returned a fuel consumption figure of approximately 11.8 l/100 (one test run)
Maybe we should take pictures of our odometers, our tires, fuel stations and fill-up figures, level of fuel in the filler neck... Maybe that would settle the controversy!
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I love this thread - so much misinformation as to be just about completely useless, but entertaining nonetheless! And crushers, just to clarify most diesels have much shorter oil change intervals than gassers...
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Most comperable gassers (my previous 3.2 and 2.8 Troopers for example) recommend 8000kms between oil changes. My diesel Bighorn (2.8) was also 5000kms, but I did it much more often than that.
Diesel generally require less 'maintenance', as in repairs (no plugs, leads, etc.) but more frequent oil changes since they run with much higher compression. I can't say for the 2F since I've never owned one, but any diesel mech will tell you to change the oil more frequently in your diesel than in your gasser.
Diesel generally require less 'maintenance', as in repairs (no plugs, leads, etc.) but more frequent oil changes since they run with much higher compression. I can't say for the 2F since I've never owned one, but any diesel mech will tell you to change the oil more frequently in your diesel than in your gasser.
Not all diesels need an oil change every 5,000 km like the old sooty 3B and 2H. The 1HD-T uses a dual element filter and under normal driving conditions the oil is usually good for about 10,000 km. Some are even reporting, after oil analysis, that even longer intervals are possible.
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Yup - that's why I said 'most'.
Heck my old sooty 3B had oil changes between 5 and 10K and nothing fancy at that (although I tried ti use Rotella as much as I could). OK, I never 'pushed' that truck that hard (hey, you can't 'push' a NA 3B that hard anyway) but one thing we forget is that modern oils are much better that the ones that existed when these trucks rolled off the asssembly line and at 600,000 km the engine is still running fine.
I am suggesting that an oil change after 10,000km should be fine for normal driving in the newer low soot engines, and a lot of folks making analyses seem to have switched to longer intervals as well.
Now if you're just doing stop and go from cold starts, no oil is going to stay clean for long and even 3,000 km may be good (especially7 in the coldedst part of winter). Even in the coldest months, however, the 1HD-T never became sooty fast like the 3B would.
I admit I should get a sample tested this winter to prove my case.
I am suggesting that an oil change after 10,000km should be fine for normal driving in the newer low soot engines, and a lot of folks making analyses seem to have switched to longer intervals as well.
Now if you're just doing stop and go from cold starts, no oil is going to stay clean for long and even 3,000 km may be good (especially7 in the coldedst part of winter). Even in the coldest months, however, the 1HD-T never became sooty fast like the 3B would.
I admit I should get a sample tested this winter to prove my case.
New diesel vehicles have oil changes extending up to 25,000km. The ford focus I was looking at a few weeks ago is recommended 20,000km intervals.
Even some engines built before 2000 have oil changes recommended at 20,000km intervals.
The 100 series with 1HD-FTE is recommended at 10,000km.
25,000 km... WOW! A testament to the cleanliness of combustion of the newer engine designs...
A lot of them meet the white glove exhaust test. Truely impressive.
