How to increase fuel economy on a Duramax Diesel?
It’s no secret that a Duramax diesel is not known for fuel economy. But there is more than one way to increase the fuel economy on a Duramax diesel and save money on gas. And while these modifications won’t give you the gas mileage of a small commuter car, you can increase your fuel economy from three to six miles per gallon.
What kind of mpg does a Chevy Duramax get?
I just bought a new 2004 Duramax Chevy, extended cab with short box. I filled the tank at 226 miles and showed 17.2 mpg. I filled again at 500 miles and now show 15.2 mpg. This is kinda discouraging. Is this normal? I bought the D/MAX expecting 18-20 mpg.
How much horsepower does a Duramax LLY have?
The hp and torque increase is for Allison 5 speed automatic equipped models only, not the ZF-6spd manual. The hp and torque of the previous LB7 was 300 hp, 520 lb/ft torque. …of the new Duramax LLY are the new heads, which put the injectors *outside* the valve covers, rather than underneath them as on the previous LB7.
What’s the warranty on a 2001 Duramax Diesel?
GM recently sent out notices to owners of 2001-2002 Duramax diesels that they *may* experience injector failure caused by high fuel return rates or cracked injector bodies, and that accordingly, GM will extend the warranty on *covered* failures (not all) to 7 yrs/200,000 miles.
It’s no secret that a Duramax diesel is not known for fuel economy. But there is more than one way to increase the fuel economy on a Duramax diesel and save money on gas. And while these modifications won’t give you the gas mileage of a small commuter car, you can increase your fuel economy from three to six miles per gallon.
I just bought a new 2004 Duramax Chevy, extended cab with short box. I filled the tank at 226 miles and showed 17.2 mpg. I filled again at 500 miles and now show 15.2 mpg. This is kinda discouraging. Is this normal? I bought the D/MAX expecting 18-20 mpg.
The hp and torque increase is for Allison 5 speed automatic equipped models only, not the ZF-6spd manual. The hp and torque of the previous LB7 was 300 hp, 520 lb/ft torque. …of the new Duramax LLY are the new heads, which put the injectors *outside* the valve covers, rather than underneath them as on the previous LB7.
GM recently sent out notices to owners of 2001-2002 Duramax diesels that they *may* experience injector failure caused by high fuel return rates or cracked injector bodies, and that accordingly, GM will extend the warranty on *covered* failures (not all) to 7 yrs/200,000 miles.
How many miles does a GMC Sierra 2500 get?
1,102 GMC Sierra 2500 HDs have provided 23.8 million miles of real world fuel economy & MPG data. Click here to view all the GMC Sierra 2500 HDs currently participating in our fuel tracking program.
What kind of gas mileage does a GMC Canyon get?
Of course, as you go further back into older models of diesel trucks and bigger Duramax engines, the fuel economy naturally goes down. The 2016 GMC Canyon gets a combined average of 24 MPG, while the much larger 2016 GMC Sierra 3500 HD gets about 12.6 MPG combined. Combined fuel economy is a weighted average of city and highway MPG values.
Do you need to use ProSource Duramax performance parts?
If your primary reason for modding is fuel economy, make sure you run the numbers and see if the gains are worth the cost. Rely on ProSource for a wide selection of 6.6 Duramax performance parts and aftermarket 6.6 Duramax parts to increase your gas mileage and keep your truck running great for a long time.
When did GMC Duramax lose power under load?
In 2012 there was a P1093 code and the dealer invoice states “…low rail pressure during enrichment. Command high fuel rail pressure, pressure drops. Follow diagnostic chart, test system pressure, relief valve failed” so they replaced the FPRV.
1,102 GMC Sierra 2500 HDs have provided 23.8 million miles of real world fuel economy & MPG data. Click here to view all the GMC Sierra 2500 HDs currently participating in our fuel tracking program.
Why do I get less mpg with a Duramax engine?
Service and maintain your Duramax truck regularly. Failing or worn Chevy Duramax parts can be culprits in reduced fuel economy. The average MPG for a truck with a Duramax engine varies depending on the truck model as well as on which Duramax engine it has.
What causes a Chevy 2500HD to lose power under load?
Probably P0087. Check the fuel hoses at the side of the trans– they can get kinked, weak and collapse. I’ve just experienced a very similar situation with my 2005 2500HD. After driving about 2 hours, over varying terrain, I had to stop at a light (not the first on the trip).