Why Is My Duramax Getting Bad Fuel Mileage. and that you can get a good one or a …. Just clicked 1,000 mile

and that you can get a good one or a …. Just clicked 1,000 miles and Im averaging 12. The fuel i buy usually comes from 1 of 3 stations that sell a lot of diesel. hi i have heard of the lb7 getting up to 23-24 highway talked to guys that get 22 all the time but also guys that havent seen past 16 highway. Newbie here. I have done a few couple hundred mile trips, but only a few long trips so far, so I should be getting shit mileage on a lifted truck with no front air dam and these MT tires. My new 2025 with same … So my father bought an lml new from the factory about 6 months ago. 0L duramax. Gas mileage, … I am thrilled with my mileage. I got my truck tuned with efi live and it was at 14mpg around town. I now … Hey all! Well I installed my lift pump and now my fuel mileage is crap. 0 Duramax problems, their causes, and what you can do if your diesel vehicle has … I explain why Emission , DEF and increased DPF Regens may be causing worse fuel economy in these new engines then in older duramax diesel engines. Anyone got any … I have a buddy that has an 05 LLY and is complaining about only getting around 13-15mpg. 5 when i am getting 14. Mileage … Some talk about fuel mileage like fisherman talk about their catch. Here's the average … The customs come with a 6 speed, which doesn't do so well in terms of mileage. … Hi Everyone I have a 2008 LMM Duramax and Allison fitted to my Nissan Patrol. My LBZ had thermostats that were stuck open and it never came up to optimal operating temperature. i just bought a 2005 duramax and have only been getting 13 miles per gallon. Then I installed a lift pump and i … Read on to understand why fuel economy drops as cars age and, more importantly, what you can do to help keep … If you’re wondering, “Why is my Ram 1500 getting bad gas mileage?” you’re not alone. I also run aggressive tires and they don't help mileage. Anyone got any … Driving 75-80 mph on the same 3 hour interstate stretch, my 2015 2500HD Duramax would get 18-19 MPG. 5 lmm and I was getting between 17-18 mpg since I bought the truck last September with 102,000. 6 with 23050 miles l love my truck. 25 votes, 135 comments. I’ve got the 5. Spark plugs are responsible for igniting the fuel-air mixture in the … Has anyone with a 2014+ experienced a sudden drop in their fuel mileage. 7 Cummins. This is my 6th duramax truck and this new one is using a lot of fuel. This can result in a decrease in fuel … Bad spark plugs or ignition coils can also cause poor fuel efficiency and reduced gas mileage in Sierra HD. The LT trailbosses also have dampers behind the grills that help during colder months. … What did Chevy do to ruin a perfectly good engine? I had a 2020 and was getting 18mpg mixed fuel mileage. But what happens when you notice a dip in your gas mileage, leaving you … Is your truck getting up to the proper temperature. I bought the truck new and off the lot I was getting an average of 400 miles to a tank. 7 MPG. 6 mpg. 96 mpg next fill was 8. My 2024 2500HD AT4 … So I got a cp3 coming be here tomorrow and my trans is acting up so I'm dropping it and building it. com helps you secure expiring domain names. Whether you have a Cummins, a Duramax, a power stroke, … Is anyone getting better than 15 mpg on there zr2 Chevrolet Colorado ZR2 owners discuss their fuel economy experiences, sharing their average MPG and best MPG achieved, with various … Why Is My Truck All Of A Sudden Getting Bad Gas Mileage? Sudden bad gas mileage in your truck could be due to issues with the oxygen sensor, dirty air filters, low tire … The Duramax turbodiesel engine combines incredible torque with good fuel economy. 2012 LML, first long trip towing our toy hauler,30 foot work and play loaded up to 12K. My truck is more like yours. 3 10speed/ … Why Is My F150 Getting Bad Gas Mileage? Now that you know if your Ford F150 is guzzling more gas than usual, many factors can … Hello all I'm new here. … Learn the most common GMC and Chevy 3. Not knowing your setup and the previous owners driving style it’s hard to say if you have an issue causing lower … When it comes to the issue of worsening fuel mileage, your car may be telling you something that can be easily overlooked. My fuel mileage is absolutely awful. I have heard the generation 1 L5P's were much better in the fuel … I had the bigger Duramax for many years and I don't remember its fuel economy being so sensitive; I guess because it was a bigger … For the past 6 months or so, my 2004 Chevy Duramax crewcab long bed has dropped from 20/21 MPG to 17/18 highway. but what can be done to correct … “Why is my Honda CRV getting bad gas mileage?” is a question many CRV owners have pondered. A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. true23 Sierra 1500 SLT 3. 5 mpg over a 22 mile stretch running 60mph using cruise … Hello everyone. I have 2 engine codes which are glow plugs which shouldnt effect the fuel. Not really a fair … Saw a drop in fuel economy on my LML recently that was caused by bad thermostats telling the truck that it wasn't getting up to normal opperating … I recently got a '17 L5P, ~83,000 miles. First tank went 9. Some duramax's have great mileage out and others are worst. This blog post will delve into the common culprits behind poor fuel … Horrible Fuel mileage in my 2018! GM has been contacted! | Chevy and GMC Duramax Diesel Forum Home Forums Chevy / GMC Duramax 2017+ L5P Forums 2017-19 … City driving, short trips, and aggressive acceleration can all significantly impact fuel economy. Towing my gooseneck and pulling truck (appx. Discover how to get 30 MPG with a Duramax and … You bought a truck, with a 5. I am in search of an LBZ 2006-2007 one ton dually. fuel filter was recently changed and my tired size is only 265-16. There was a little bit of oil in the top coupler so I cleaned it up. 0 PSD. My question is could my tranny been hurt longer than I thought and causing … Learn tips and strategies to achieve impressive efficiency with a Duramax engine. . But my new Duramax's fuel economy is about 3 MPG less then my last 6. Spécialisée dans la reprogrammation moteur, l'entreprise KarPro située à ROUBAIX propose ses services aux professionnels et particuliers, en métropole Lilloise et dans le nord de la France … Curious if this is normal for a ZR2 with the duramx. 13,500) I … If the MAF sensor is dirty or clogged, it can cause incorrect readings and lead the ECU to inject too much or too little fuel into the engine. If you’re wondering “Why is my Honda … However, many Ascent owners have reported experiencing subpar fuel economy, leaving them wondering, “Why is my Subaru Ascent getting bad gas mileage?” This blog post … Q: Why is my Outback getting worse gas mileage than the EPA estimates? A: Several factors can contribute to lower-than-expected fuel economy, including driving habits, … I have a buddy that has an 05 LLY and is complaining about only getting around 13-15mpg. The engine had 35,000 miles on the clock when I fitted it and I have done about 28,000 miles … Also just changed my fuel filter and water separator on my AD150 and no real change in mileage. If your commutes are primarily stop-and-go traffic, … I was wondering if anyone has any ideas on why the mileage in my truck would get worse all of a sudden. Then looked it over for rubs but it was in good shape. Unless you can do a bunch of mods cheap, you can pay for a lot of fuel if the gain is only 1-3 mpg. but what can be done to correct … We took a 1275 mile round trip to South Carolina from Pennsylvania and was impressed with fuel mileage. Even if it doesn't, this is better than I was getting with my 6. As I stated before,I'm getting a new 2020 Sierra 1500 4x4 crew cab loaded with a 3. In fact it is a pig compared … I know that it seems every other thread on here is about fuel mileage but I can't figure out why my mileage dropped so severely! I have a stock 07. But does anybody have anything that can help with MPG. back home in the summer i was averaging 21mpg while driving on country roads … The Ford EcoBoost engine is designed to deliver both performance and efficiency, however, there are several factors that can … Curious about what everyone is getting for combined fuel mileage- Post up your motor/trans combination and any mods you have along with mileage. I have changed fuel filter, cleaned MAF sensor, checked air filter,& also … DropCatch. It has stock tires, no mods, and drives fairly. I know the LLY's get worse milage than the LB7's. 3 lost 2 to 3 MPGs driving around town and 3 to 4 on long … If you look at the many different mileage post. Recently my fuel mileage has been drastically decreasing. The only thing that has changed, is maybe the … I have just over 1000 miles on my new GMC Sierra 2500 Duramax. only getting 12 MPG city driving. 0 consistently will average 36. I don’t floor it and mostly ease on the gas. Once it gets to about 1/8 of a tank or 1/4 of a tank I would fill up - … 11 Reasons Why Your Car’s Gas Mileage Is Getting Worse It seems like common sense that, as a car gets … Why Is My Car Guzzling Gas? 7 Top Causes of Poor Gas Mileage Feeling like fuel is eating up more and more of your monthly budget? Discover the top causes of bad gas … Hi Guys, Still getting used to the dmax. It has 1,400 miles. But most average in the 17s doing 75 down the interstate. My questions are; 1-what kind of fwy mpg does the 2wd and the 4wd get on the average … I have only had my Duramax for a week and a half but I filled it up last week and drove it down to around half a tank and filled it back up and checked mileage, and it was 17. This blog post will explore the common culprits behind decreased fuel … So after multiple times of trying to find out what is wrong with my truck and multiple posts on the facebook duramax forums, multiple searches on these forums, Ive finally decided … “Why is my Ford Escape getting bad gas mileage?” is a question many Escape owners ask themselves. I … My LLY will read backwards it will say i am getting 12. It seems like over night my 2015 5. i crawled under it and seen that it only had about a 7 feet piece of 3 inch pipe for the exaust. I got a Fass lift pump and it all went away. I have a 2008 Chevy 3500 HD with the Duramax diesel. 2. I have seen GM fuel stats of 22 … The customs come with a 6 speed, which doesn't do so well in terms of mileage. A seven thousand pound vehicle just isn't going to get any kind of mileage in city … Not a deal breaker. Why Is My Ford Escape Getting Bad Gas Mileage? Uncover the Hidden Culprits! December 7, 2024 by Erik What to know If you notice a significant decrease in your fuel … I'm still getting bad mileage after spraying the MAF with cleaner and i have a dry air filter also. So far I am very disappointed in the torque below 2500 rpms, and the mileage. i … I too had a slight surge and irregular idle, bad fuel economy and not much power. i … Get better MPGs in your Duramax, Cummins, or Power Stroke diesel pickup truck today. If your commutes are primarily stop-and-go traffic, … The Honda CR -V is a popular choice for its reliability, spaciousness, and fuel efficiency. 3, drive strictly in the city and are worried about fuel mileage?! Ol son you need to sell the truck an by a soccer mom car 🤦🏼‍♂️ Even though diesel engines are more fuel efficient and provide more energy than similar size gasoline engines, fleet managers and owner-operators … Is the engine getting up to temp? Saw a drop in fuel economy on my LML recently that was caused by bad thermostats telling the truck that it wasn't … My 11', deleted, banks intake, motor ops tuning, and 275/65/20 tires is getting around 21-22mpg in the freeway 65-70mph. Even with wind alot … Fuel Coolant Pump Relocation Kit 2020-2022 Duramax L5P Cognito 3-Inch Standard SM Series Leveling Kit For 20-24 Silverado/Sierra 2500/3500 2WD/4WD City driving, short trips, and aggressive acceleration can all significantly impact fuel economy. Truck seems to have more power based on seat of the pants testing. Come join the discussion about modifications, towing, classifieds, … With these tips, you’ll boost your Duramax diesel engine’s performance and fuel economy. It's at the point … I've got the 2021 ZR2 3. Hardly ever towing anything and with a mix of city/highway, … The fuel mileage on my 23 was bad until I got 15k on the truck and is still getting better by about 2 MPG going over same route/routes. I bypassed the OEM filter housing with a gauge tee and I am getting 11 PSI … I just traded in my 2021 GMC 3500 for a 2025 3500. At best, I get 18, worst, 12 , but my truck is heavy with a flatbed and two extra fuel tanks. 0 with at least 20,000 miles on it and have you noticed a drop in mpgs? My fuel filter says it’s at 38% and I have one on order, but is that enough to … Got about 164k on the engine just replaced injectors, high pressure lines and add a FASS lift pump. despite driving primarily in the city with alot of traffic, my gas mileage is not where it should be. Have you put a scanner on the truck and read actual/desired fuel pressure to rule out the regulator yet? Usually they start to lope the engine at idle when they are going bad. I have not towed anything yet, this … Does anyone have a 3. You didn't say what tread you're now running but that makes a difference, too. I am now getting 17-20 mpg, no surge, and idle … Understanding Gas Mileage Before we dive into the reasons behind bad gas mileage, it’s essential to understand what gas mileage is and how it’s calculated. I can feel the power difference in my truck on real hot … From fuel system failures to turbocharger troubles, we’ll walk through what typically breaks, why it happens, and what you can do about … The trucks ECM doesn't know you changed tires. Feeling like fuel is eating up more and more of your monthly budget? Discover the top causes of bad gas mileage and save your wallet by learning how to fix them. … I live in the city and I’m getting 14 mpg. Let me preface by saying I have owned 12 diesels, (4) Powerstrokes, (2) Duramaxes, (5) … So i am getting horrible fuel mileage on my 2006 Duramax and im not sure why. There are many variables that affect mileage such as: tire inflation, … Hi all, I have an 07. I don’t tow anything. Many Ram 1500 owners experience a drop in fuel efficiency, and it can be frustrating. 5 crew cab 4x4 and all of a … I pulled out the hot side pipe and cleaned up the soot a bit. Prepare to unlock the secrets to … Air temp, and fuel quality are two main factors likely contributing here. Replacing my two … Struggling with bad gas mileage in your F150? Our comprehensive guide provides actionable steps to enhance fuel economy … A common issue we have on high-mileage diesels is fuel injectors going bad and causing damage to the engine. My … Why is my Subaru Outback getting worse gas mileage after an oil change? While an oil change shouldn ‘t directly impact your gas mileage, a few things could be happening: Why is my Subaru Outback getting worse gas mileage after an oil change? While an oil change shouldn ‘t directly impact your gas mileage, a few things could be happening: The Honda Accord, renowned for its reliability and fuel efficiency, can sometimes surprise owners with unexpectedly low gas mileage. … It only has 2600 miles on it now so I assume that I might get better as it gets more broken in. #2 is what gets put in the … So i am getting horrible fuel mileage on my 2006 Duramax and im not sure why. smihq
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