Yamiryder, on 12 March 2012 - 01:53 PM, said:

yeah but its always the japan companys that lie mostly

roostierooster855, on 12 March 2012 - 03:28 PM, said:

Have you ever even owned a japanese vehicle?

roostierooster855, on 12 March 2012 - 03:28 PM, said:

Nah, the Ford's are famous for doing it?

Chickenhauler, on 12 March 2012 - 12:52 AM, said:

Mine can display both "real time" and "average" fuel economy. I don't know how accurate the "real time" reading is, no way to test it without some sophisticated equipment. But the "average" reading is surprisingly close per tank of gas I use, it's within a couple tenths of what I calculate.

Chokey, on 12 March 2012 - 05:30 PM, said:

I know the computer on my car also comes within a tenth or two of average mpg per tank compared to my calculations as long as I use the recommended fuel. It recomends 90 octane but can run all the way down to 87. If I run 87 octane the computer will read only 1 or so mpg less but the actual mpg is about 4 mpg less with lower octane fuel.

Yamiryder, on 12 March 2012 - 01:53 PM, said:

C'mon man, like i said Yamiryder.... until you've owned one Isuzu DMax 3.0-litre diesel commonrail (CRDi) pickup you won't know it....

We can always bet your balls and mine, run those fuel mileage in a deterministic manner as i've said in the previous post, and see for yourself, once you had the chance to drive this Isuzu DMax

The thing is, in the US, you guys there just happen not to hear such high-fuel mileage in internal combustion engines do exist in other parts of the world. A lot, if i may say, had been actually programmed to look into the small-gasoline hybrid cars, which in fact, bigger diesel commonrail EFi engines can match or even surpass those numbers they set as records in fuel mileage. Just look at Europe guys, the diesel engine is the norm in Europe, not gasoline- or petrol-driven. Name them cars like Audi, BMW, Jaguar, Renault, Mercedes-Benz, Saab, Opel, Citroen, Volkswagen, etc., a lot of them in the European roads whether it be on the western Europe or eastern side, run in diesel engines, and YES, in a Euro 5 emission standard continent.

Better, try searching about the DMax runs in Australia (this is a Caucasian country, by the way, to erase any doubts about the integrity of the tests), Thailand and Philippines econofuel-mileage runs on the 3.0-litre midsize pickups like the DMax VGS Turbo.... Jeeze, that 21.5 km per litre (50.57 miles per US gallon) i posted in there at 85 kph at 1750 rpm is nothing to the ones set by Australian duos in the harsh outback and desert land in land downunder, returning a fuel mileage of around 22.57 km per litre, in Thailand starting from Bangkok to Kuala Lumpur in Malaysia at around 22.0 km per litre, and in the Philippines, in October 2010, at 24.26 km per litre.

Such high fuel mileage do exist globally Yamiryder, but unfortunately, it's not happening in the US man, that's why you don't believe them.... Until you do have actually owned one, honestly, you will never know it....

joshua_inigo, on 12 March 2012 - 07:01 AM, said:

Just in case, JUST IN CASE you ever have any experience in the automotive world than your personal vehicle (actually working in the auto repair industry) you might get an eye opener regarding some things like fuel mileage readout accuracy.

Some are accurate, but there are more out there that aren't even close to the real world.

Kinda like bike weights published by manufacturer's and what they really weigh on planet earth.

roostierooster855, on 12 March 2012 - 03:28 PM, said:

Actually, I've found the Dodge and Ford's are the worst culprits on this one.

But, I have a lot more experience with Ford. GM isn't perfect, but I've seen less inaccuracy from them than of the other two.

Chickenhauler, on 12 March 2012 - 08:20 PM, said:

Just in case, JUST IN CASE SIR, you happen to tinker modern diesel EFi's like one of our Toyota Innova 2.5 D-4D, Kia Sorento 2.2 R-eVGT, and my Isuzu DMax 3.0 iTEQ VGS than any of the American gasoline and diesel cars or utility trucks you have there, then you WILL get an eye opener regarding a lot of things about fuel mileage efficiency, whether it be thru the computer ECM or through means of manual deterministic distance versus fuel consumption approach....

Until you get to own one modern midsize diesel EFi pickup or a midsize SUV like that of a Hyundai Santa Fe 2.2 R-eVGT (your US-issue there is a V6 gasoline Santa Fe), you won't know this and your basis would only be your own homegrown American guzzlers, sir

Fyi, I was working on modern turbo deisel engines here in the states, vgt, hpop injection systems, multi pulse injection, etc over a decade and a half ago. Not much has changed regarding the accuracy or the margin of error that occurs in many of the dashboard fuel economy readouts. Some are accurate, most are not. Hand calculating is the only reliable form that professionals use to verify fuel consumption.

Chickenhauler, on 13 March 2012 - 12:21 AM, said:

That's why i kept reiterating this sir

joshua_inigo, on 12 March 2012 - 09:51 PM, said:

What else does one wouldn't want consuming only less than 10 litres over a distance of 200 km at 85 kph to 90 kph in a freeway, in actual measurements, while using a high-cetane diesel fuel like a Shell V-Power diesel that he's buying at $0.99/litre equivalent, or US$3.78/US gallon equivalent (PhP42.00/litre)?

i mean what else sir????

yeah my dads impala is spot on cause he calculated it. I think they have a calibrate each vehicle but i do know that honda's are supposed to be way off and people were complaining about it and stuff. I heard that about 2 years ago so dont remember exactly what was going on. But it is simple is they when they are off it puts more miles on the car when really there are less so some tend to think they are better quality for holding up longer and think they get better mpgs when there really not!

joshua_inigo, on 13 March 2012 - 01:52 AM, said:

Your freeways only move at 55 mph?

Do these motors have EGR and DPF systems?

I thought you said your diesel fuel was cheap? It's only 20 cents more here in WI today.

Chickenhauler, on 13 March 2012 - 04:22 PM, said:

Good day Chickenhauler.

Yes, speed limit in our expressways here is at 100 kph (62.5 mph). Freeways here are just between 2 lanes each side for the most part to 4 lanes each side in few sections. However, since the speedometer in the cluster-meter panel is actually about 10% more, give or take, than the actual land speed you're at, i occassionaly run around 110 kph reckoned from the cluster-meter. Manufacturers intentionally do this to prevent people from overspeeding, so they say. Learnt this from a fellow overseas worker stationed in a Mitsubishi car production plant in Japan.

When that photo showing an indicative speed of 85 kph was taken, i was on what you may qualify as sorta econo-run mode. Was doing actual test back then how good consumption- and performance-wise the high-cetane (i believe around 55-cetane or so) Shell V-power diesel was. The North and South Luzon expressways are relatively flat, by the way, compared to the other. Since then, the V-power has always been my stable fuel.

Also yes, the DMax ute, the Toyota AUV, as well as the Korean Kimchi Sorento that we have come in standard with EGR's. The DMax, i think, doesn't have a soot/particle filter though hehe.... But in Europe, the ute has a soot particle filter because of the strict Euro 5 emission standard.

Oh, before i forget, the diesel fuel here cost lesser than gasoline, that's what i meant Chickenhauler.

Just last March 6, 2012, the big boys (Chevron, Petron, and Shell) hiked again the fuel prices to:

Diesel - from PhP45.50 to PhP48.50 per litre (now at US$4.31 per US gallon)
Gasoline - from PhP53.75 to PhP 60.42 per litre (now at US$5.37 per US gallon)

That price split with gas being more expensive would lead me towards buying a diesel too. Egr takes a bite out of fuel economy, and dpf will take an even bigger chunk. It takes power to force the exhaust through that trap, then more fuel consumed on regen. Our emission standards have made diesels complex, unreliable and expensive to maintain.

Chickenhauler, on 14 March 2012 - 01:06 AM, said:

Jeeze, that's just unbelievable.... So you mean, you hafta actually clean regularly the exhaust particle filter or replace them? How often?

Oh, by the way, even Total Petroleum of France has risen its fuel price here in my place, together with the big 3 hehe....

Dpf's trap soot particles until they reach a predetermined level of cloggage (Backpressure) then they begin a regen cycle, which amounts to basically injecting raw fuel directly into the dpf and igniting it (Yes some diesels in fact do have spark plugs). While this removes a large portion of the offending soot, there is always some residue that remains. At some point, it reaches a level that even a regen cycle cannot clear it out, and the dpf must be removed from the vehicle and cleaned with special equipment. On big rigs, this happens between 100 and 250K miles and the cost is a thousand plus bucks.

So a timing belt replacement (except when it's a timing gear and chain) at 62,500 miles and a DPF clean-up every plus 100k miles at around PhP50k in our money.... That's a sizeable amount of money for us man.

Good thing my ute is timing gear and chain and it doesn't have a DPF ....but the Toyota D-4D and the Kia R-eVGT are quite a different story

Have a nice day Chickenhauler....

joshua_inigo, on 15 March 2012 - 05:27 AM, said:

IDK what the intervals would be like on a light truck, this is big rig intervals and pricing. I'm going to assume that lighter stuff might be sooner, since they do alot more stop and go, idling, and lightly loaded driving (not generating enough heat). Smaller engine=smaller DPF, so maybe it's not as expensive?

As for timing belts...I'm not aware of any US light trucks with diesel engines that have timing belts. Nor a big rig for that matter...mine doesn't even have a timing chain, it's all gear.