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163 0210 Gas Gasvsdiesel L

Tech: Gas vs. Diesel

 

Chevrolet/GMC
The GM 2500/3500 twins Silverado HD and Sierra HD come standard with GM's 6.0L gas V-8. This engine is best suited for 3⁄4-ton trucks where towing isn't a concern. Upgrades start with the 8.1L gasoline V-8 based on Chevrolet's venerable big-block engine. This decades old, yet rugged and reliable design makes more horsepower and torque than the Ford and Dodge V-10 gasoline engines. Stepping up to GM's diesel offering gets you the Isuzu-engineered 6.6L V-8 that pumps out 300 hp and 520 lb-ft of torque. Even though this engine is one of our favorite GM truck powerplants of all time, mating it to the optional Allison-built automatic transmission makes it even better. This transmission also can be ordered with the 8.1L engine and is based on Allison technology it perfected while building heavy-duty truck automatic transmissions.

163 0210 Gas Gm60l Z
GM 6.0L Gasoline Click image... 
   
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GM 6.0L Gasoline
Engine type: V-8, cast-iron block, aluminum heads
Bore x stroke, in: 4.00 x 3.62
Displacement, ci/L: 366/6.0
Compression ratio: 9.4:1
Valve gear: 2 valves/cyl, OHV
Fuel induction: Sequential multiport
Horsepower, hp @ rpm: 300 @ 4400
Torque, lb-ft @ rpm: 360 @ 4000
Recommended fuel: Unleaded regular
Max GCWR, lb: 16,000
Max towing capacity, lb: 10,500
Option price: Standard

163 0210 Gas Gm8100 Z
GM 8.1L Gasoline Click image... 
   
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GM 8.1L Gasoline
Engine type: V-8, cast-iron block and heads
Bore x stroke, in: 4.25 x 4.37
Displacement, ci/L: 496/8.1
Compression ratio: 9.1:1
Valve gear: 2 valves/cyl, OHV
Fuel induction: Sequential multiport
Horsepower, hp @ rpm: 340 @ 4200
Torque, lb-ft @ rpm: 455 @ 3200
Recommended fuel: Unleaded regular
Max GCWR, lb: 22,000
Max towing capacity, lb: 15,800
Option price: $850

163 0210 Gas Gmdiesel Z
GM 6.6L Turbodiesel Click... 
   
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GM 6.6L Turbodiesel
Engine type: V-8, cast-iron block, aluminum heads
Bore x stroke, in: 4.06 x 3.90
Displacement, ci/L: 403/6.6
Compression ratio: 17.5:1
Valve gear: 4 valves/cyl, OHV
Fuel induction: Direct injection, high-pressure common rail
Horsepower, hp @ rpm: 300 @ 3100
Torque, lb-ft @ rpm: 520 @ 1800
Recommended fuel: Diesel
Max GCWR, lb: 22,000
Max towing capacity, lb: 15,800
Option price: $4810 ($1200 for Allison 1000)


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Community Comments


zakaa  (04/07/09 12:29 PM)

whats up sweet page i like diesels

mrstroker11  (10/24/10 04:18 PM)

I love my diesel... My 6.4 power stroke pulls like a freight rain ... I will never go back to gas!

duramaxing6  (01/31/11 11:24 PM)

Haha, this is all wrong. line up a diesel truck vs gas truck and the diesel will win every time. Dimitri Millards 2002 lb7 duramax turbo diesel in his chevy truck put down 1,702 hp on the dyno. Show me one gas motor form a truck with anything done to it even get close to that. The torque on his truck is beyond a 2,000 pounds. Maxed out witha lbz duramax runs a 9.7 second quarter mile with no nitrous. gas trucks cant do anything with diesel trucks. if you want big power, faster accelartion then gas, more pulling, get a diesel.

duramaxing6  (01/31/11 11:32 PM)

"quite high versus a more powerful gas engine" what, the diesel are the more powerful engine, more torque. This is just insulting to diesels. Who ever wrote this needs to be fired now. Just remember, torque gets you rhere hp keeps you there. and plus the new duraxmax comes with 397 hp and 765 pounds od torque and i havent found one gas truck that can beat it, because ther are none

Truck Trend  (02/01/11 08:35 AM)

@duramaxing6  IF u didn't notice, this was written in 2002. And that person is no longer on staff

verne407  (03/06/11 02:01 PM)

ANY ONE WHO OWNES A DIESEL IS A MORON.
YOU PAY 7,000 TO $10,000 MORE JUST FOR THE MOTOR.
THEN YOU PAY 25CENTS TO 75CENTS  A GALLON FOR THE FUEL. IT WOULD TAKE ALMOST 1 MILLON MILES TO PAY JUST FOR THE COST OF THE MOTOR.

NOW THATS DUMB.
NOT INCLUDING THE FACT YOUR CAN'T FOLLOW A DIESEL UP HILL OR DOWN BECAUSE OF THE STINK.

tonymichalacha  (03/10/11 12:49 PM)

diesels are the best verne407 your an idiot. for people that actually work and haul things, they are the way to go. and duramaxing6, if you do enough to a gas burner it is going to be faster than a diesel every time, it is lighter and they can produce more horsepower. Gasoline powered drag cars have over 2000 horsepower. Diesel has less limitations because it is a more stout motor, but gasoline can be made to produce more horsepower it is a fact. the torque from a diesel just beats the pants off gasoline. however most diesel trucks are turbocharged and have much bigger displacement, and it is cheaper to make them faster because they can handle  more air and fuel so easily. in the real world, diesels are usually faster, but i guarantee a gasoline engine can be made faster

tonymichalacha  (03/10/11 12:58 PM)

and by the way duramaxing6, the new silverado 1500 GAS BURNER has over 400 hp stock. therefore more horsepower than the duramax. i would bet my life it would outrun the new d max also. it just does not have nearly as much torque. and therefore verne407, for anyone who actually uses their truck, can pull a ton more than the gasoline engine.

jollydieselroger  (05/09/11 09:02 PM)

yeah i agree with ya tonymichalacha, oh and verne407 dont worry about the million miles. i know people who have actually put more than a million miles in a diesel truck because iis soooo much more durable than a gas engine. gas engines go what....300k and then they die. THAT'S a waste of money in my opinion. Eat your words fool and get your facts srtaight.

jollydieselroger  (05/09/11 09:18 PM)

And why do you think that the motor costs 7 to 10 grand more?....cuz its better fool. You're not a real truck guy. ANYONE WHO is would agree diesel is better.

dieseldan60  (08/15/11 04:20 PM)

Anyone out there pulling a 5th wheel camper, about 13,000 pounds, with a gas pickup, 3/4 ton?  Can't decide whether to go gas or diesel.  Diesel fuel is at an all time high.  Plan to go about 6,000 miles a year.

pierreparis  (09/13/11 04:01 AM)

Hi everyone, I'd like to give you a european point of view, as here in France more than 70% of cars run on diesel engines. We can't compare american trucks and the typical european car, but it's just to give you another point of view.

First of all, here diesel fuel costs about 7$/gal (sep. 2011) and gas 8$/gal, because of very high taxes, higher on gas than on diesel. Every gas station delivers both unleaded fuel and diesel fuel.

Constantly increasing performance helped consumers massively switch from gas to diesel engines in the 1990s and 2000s. Now Diesel engines are as powerful as gas engines, and the high torque offers good comfort.

Nowadays, a medium family car with Diesel engine consumes around 60mpg! Some are even better, especially on road driving. Here the typical motor is around 90-120 HP with 4 cylinders. More and more city cars now have 3 cylinders gas engines, cheaper to buy than Diesel, allowing 50 to 60mpg on gas.

And here, EVERY truck or commercial vehicle has a diesel engine.

ghostofChrist  (09/17/11 07:12 PM)

i agree that diesel is better. but my 99 silverado 1500 has over 300,000 miles on a stock engine and is still going strong and never has it let us down.

ryan87  (10/25/11 08:51 PM)

here is a different side of the subject people dont address.  My 98 half ton gets 10 mpg.  if a 3/4 ton diesel with way more towing capabilities can get 15 to 20 mpg, diesel fuel would have to be time and a half to twice as much as gas to be even comparable. last i checked it was only 10 to 40 cents more. The article says that diesels have been known to get around 8 mpg better and i do know a few cummins owners getting 20 mpg

Turfguy  (02/11/12 11:19 AM)

diesel motor doesn't cost 7-10 grand more if you buy a used one.........
I bought a nice 2wd 94 cummins dodge with a nice body, put the aluminum wheels on it to make it looks like an '02, & some mild upgrades. It gets better mpg than any gas truck I've owned, & our caravans too.
With 1000# in the bed I have gotten up to 26 on the highway, & regularly get 14-16 in town. I have about 6 grand invested in it the way it sits now :-)

Turfguy  (02/11/12 11:21 AM)

PS- verne your post proves you've never owned a diesel truck; otherwise your story would be different

Gustavo56  (04/01/12 01:47 PM)

V-407 u are for sure the idiot by far that is why we move the country with goods in those big freight liner, peter Bilt, and ken-worth gas rigs just to name a few.

My God where do these dummies come from.

Cummins 05 no Kitty 650 torgue smoking black stinky smoke on Verne407 face.

7.3Lpowerstroke6  (04/10/12 08:19 AM)

diesels are the best there is! "If it dont blow black take it back" 7.3L powerstrokes are known for blowing black smoke. just buy a superchip and mbrp exhaust and k&n intake and see how much power that has! you can do so much more to a diesel and still have good fuel mileage. mine gets 23 mpg. 6 speed manual is the best for pulling anything! duratrash has nothin on powerstroke!

7.3Lpowerstroke6  (04/19/12 08:11 AM)

Ya i had to pull a duratrash out of the ditch last night. That pos got stuch and i drove right around him and stopped hooked up a chain and pulled him out with no problems. I couldnt even tell i was pulling anything cuz of all the power im making.Id love to see a gas do that!

thedriftcore  (04/26/12 04:20 PM)

Silly duramaxing6, horsepower IS a measure of power. Power is a measure of the rate of energy, just as horsepower is a measure of the rate of torque, related to rotations per minute (like a watt being a measure of energy and watt-hours are a measure of watts used per hour which is a measure of power). I really am surprised how few people know such basic information yet still claim to be fans of the engines that use these as basic principals of operation.

stoney2414  (05/20/12 07:10 PM)

OK everybody, I came on here, because I am considering buying a used diesel pickup for towing my camper...my concern is, what are the costs involved in repairs, maintaining,.... what are some of the more common things that may go on a diesel engine as opposed to a gas engine??? I'm new to this idea please fill me in!!

bjohnsx  (09/10/12 02:11 PM)

HERE IS THE ANSWER: From a guy who has owned both gas F350/V-10 and diesel F350/7.3.  Bottom line, like the article says, diesel is great for towing.  But driving around town, gas is much better. There are two other factors to really consider. 1) Transmission, diesels tend to receive better transmissions - if you are pulling - get a good transmission. 2) Cost and realistic life of use versus cost.  Most people don't drive their vehicles 150,000 miles, and thus the added cost of new or used diesel (4-7K more) will never make up in fuel savings, and diesels DO cost more money to maintain.  Also, watch out for certain versions of diesels that have costly mechanical issues. (Ford 6.0)  My 7.3 diesel got 18hwy unloaded, 11hwy pulling 9K. My V-10 gets 12hwy unloaded, 7.5hwy pulling 9K. 122K on V-10 now and not one issue - just change the oil. (BTW - which is only $35.00 instead of $135 for diesel)

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