# Power/Fuel **URL:** https://community.cartalk.com/c/power-fuel/16.md [Latest](https://community.cartalk.com/latest.md) · [Categories](https://community.cartalk.com/categories.md) · [Tags](https://community.cartalk.com/tags.md) --- ## [About the Power/Fuel category](https://community.cartalk.com/t/about-the-power-fuel-category/93878)
**Author:** [@system](https://community.cartalk.com/u/system)\ **Replies:** 0\ **Last updated:** [July 18, 2016, 10:31pm UTC](https://community.cartalk.com/t/about-the-power-fuel-category/93878 "2016-07-18T22:31:24Z")
Talk about all your automotive energy questions. --- ## [Have small diesel vehicles disappeared in the US?](https://community.cartalk.com/t/have-small-diesel-vehicles-disappeared-in-the-us/206290)
**Author:** [@RandomTroll](https://community.cartalk.com/u/RandomTroll)\ **Replies:** 38\ **Last updated:** [October 20, 2026, 3:04am UTC](https://community.cartalk.com/t/have-small-diesel-vehicles-disappeared-in-the-us/206290 "2026-10-20T03:04:48Z")
Friends bought diesel Rabbits in the early '80s. I took a trip with one once; they had to look for diesel at gas stations. I think it was cheaper, as well as delivered more miles to the gallon. I worried about small e… --- ## [L5P exhaust upgrade what should be logged before changing anything?](https://community.cartalk.com/t/l5p-exhaust-upgrade-what-should-be-logged-before-changing-anything/206411)
**Author:** [@hashly123](https://community.cartalk.com/u/hashly123)\ **Replies:** 3\ **Last updated:** [October 15, 2026, 8:32pm UTC](https://community.cartalk.com/t/l5p-exhaust-upgrade-what-should-be-logged-before-changing-anything/206411 "2026-10-15T20:32:58Z")
I am planning some work on a Silverado 2500HD L5P and I want to establish a proper baseline before touching the exhaust side.The truck runs well but under a long pull I would like to know whether there is anything in the… --- ## [Yet another 'New Yorker' cartoon](https://community.cartalk.com/t/yet-another-new-yorker-cartoon/205686)
**Author:** [@RandomTroll](https://community.cartalk.com/u/RandomTroll)\ **Replies:** 8\ **Last updated:** [September 17, 2026, 1:19am UTC](https://community.cartalk.com/t/yet-another-new-yorker-cartoon/205686 "2026-09-17T01:19:45Z")
--- ## [EV CO2 payback calculator](https://community.cartalk.com/t/ev-co2-payback-calculator/205913)
**Author:** [@texases](https://community.cartalk.com/u/texases)\ **Replies:** 22\ **Last updated:** [July 2, 2026, 1:56pm UTC](https://community.cartalk.com/t/ev-co2-payback-calculator/205913 "2026-07-02T13:56:11Z")
I’ve heard various claims on how long it takes for an EV to be a better choice than a gas powered car as far as CO2 emissions go. Lots of times it’s some generic time claim, like ‘2 years’. But that doesn’t account for … --- ## [NY Times Says Super New Extended Range Electric Vehicles Are Going to Dominate](https://community.cartalk.com/t/ny-times-says-super-new-extended-range-electric-vehicles-are-going-to-dominate/205875)
**Author:** [@dhallis](https://community.cartalk.com/u/dhallis)\ **Replies:** 35\ **Last updated:** [June 24, 2026, 5:34am UTC](https://community.cartalk.com/t/ny-times-says-super-new-extended-range-electric-vehicles-are-going-to-dominate/205875 "2026-06-24T05:34:59Z")
https://www.nytimes.com/2026/06/17/business/extended-range-electric-vehicles-erevs.html The article basically says that a new generation of super hybrids are coming. These will be electric motor powered by plug in and w… --- ## [Gas tax suspension](https://community.cartalk.com/t/gas-tax-suspension/205649)
**Author:** [@jtsanders](https://community.cartalk.com/u/jtsanders)\ **Replies:** 47\ **Last updated:** [June 1, 2026, 7:15pm UTC](https://community.cartalk.com/t/gas-tax-suspension/205649 "2026-06-01T19:15:09Z")
Suspending the federal gasoline and diesel tax was suggested by the President recently. The savings per gallon are 18.3 cents for gas and 24.3 cents for diesel. The monthly loss in revenues is about $3.5 billion. That me… --- ## [Engine Light on and stalls randomly for Honda Civic 2016](https://community.cartalk.com/t/engine-light-on-and-stalls-randomly-for-honda-civic-2016/204684)
**Author:** [@bo2016](https://community.cartalk.com/u/bo2016)\ **Replies:** 5\ **Last updated:** [March 17, 2026, 1:09pm UTC](https://community.cartalk.com/t/engine-light-on-and-stalls-randomly-for-honda-civic-2016/204684 "2026-03-17T13:09:10Z")
Hi, My Honda Civic 2016 currently at 87K miles and it runs fine until the recent months. First, the engine light was on about 8 months ago and stayed on. We changed the canister purge valve and it fixed engine light bu… --- ## [EV vs ICE and Marriage](https://community.cartalk.com/t/ev-vs-ice-and-marriage/195000)
**Author:** [@Santa-Barbara-Rose](https://community.cartalk.com/u/Santa-Barbara-Rose)\ **Replies:** 33\ **Last updated:** [December 10, 2025, 10:00pm UTC](https://community.cartalk.com/t/ev-vs-ice-and-marriage/195000 "2025-12-10T22:00:11Z")
Our aging Prius just passed the 200000 mile mark. My wife has an hour commute while I get to walk to work. To replace the Prius, that should solely be her decision, right? Not so fast. I want to replace the car with … --- ## [EQS with 800 mile range](https://community.cartalk.com/t/eqs-with-800-mile-range/204055)
**Author:** [@jtsanders](https://community.cartalk.com/u/jtsanders)\ **Replies:** 3\ **Last updated:** [September 12, 2025, 11:52am UTC](https://community.cartalk.com/t/eqs-with-800-mile-range/204055 "2025-09-12T11:52:08Z")
MB recently tested an EQS with a mostly solid state battery. They drove it from Stuttgart to Sweden, a 749 mile trip and had more than 80 miles of range remaining. When this test battery technology or a full solid state … --- ## [Formula to calculate engine RPM from speed, tire size, gear ratio, final drive, and estimate fuel economy](https://community.cartalk.com/t/formula-to-calculate-engine-rpm-from-speed-tire-size-gear-ratio-final-drive-and-estimate-fuel-economy/200200)
**Author:** [@TheWonderful90s](https://community.cartalk.com/u/TheWonderful90s)\ **Replies:** 12\ **Last updated:** [May 18, 2025, 2:16pm UTC](https://community.cartalk.com/t/formula-to-calculate-engine-rpm-from-speed-tire-size-gear-ratio-final-drive-and-estimate-fuel-economy/200200 "2025-05-18T14:16:16Z")
No need to go no the Internet and have a website with advertisements and Javascript for a simple formula that you can write down. Any high school scientific calculator can do this without the need to do the order of oper… --- ## [Premium gas prices](https://community.cartalk.com/t/premium-gas-prices/199370)
**Author:** [@johnlump\_191311](https://community.cartalk.com/u/johnlump_191311)\ **Replies:** 51\ **Last updated:** [March 20, 2025, 1:10am UTC](https://community.cartalk.com/t/premium-gas-prices/199370 "2025-03-20T01:10:14Z")
I took this just this week in Chicago at Belmont and Cragin. Although the spreads have been going up lately this is the biggest spread between regular and premium I’ve ever seen. --- ## [2012 Highlander MPG down 40%!](https://community.cartalk.com/t/2012-highlander-mpg-down-40/198131)
**Author:** [@cshams](https://community.cartalk.com/u/cshams)\ **Replies:** 12\ **Last updated:** [November 25, 2024, 7:46pm UTC](https://community.cartalk.com/t/2012-highlander-mpg-down-40/198131 "2024-11-25T19:46:07Z")
Hi everyone, I’d love some help. Over the last year, my 2012 Toyota Highlander Limited (95k miles) MPG has rapidly diminished MPG. We drive mostly in the city, running errands and picking up kids with occasional trips… --- ## [Exhaust mufflers](https://community.cartalk.com/t/exhaust-mufflers/197573)
**Author:** [@karunarathnathasiru\_191561](https://community.cartalk.com/u/karunarathnathasiru_191561)\ **Replies:** 25\ **Last updated:** [October 14, 2024, 4:45pm UTC](https://community.cartalk.com/t/exhaust-mufflers/197573 "2024-10-14T16:45:35Z")
In many exhaust mufflers, condensation occurs due to high exhaust gases, which results in water forming beneath the muffler body. This eventually results in rusting, which leads to a lower muffler’s life span. So why don… --- ## [2015 chevy spark loss of acceleration problem](https://community.cartalk.com/t/2015-chevy-spark-loss-of-acceleration-problem/140259)
**Author:** [@Ange\_Burnett](https://community.cartalk.com/u/Ange_Burnett)\ **Replies:** 17\ **Last updated:** [October 3, 2024, 9:33pm UTC](https://community.cartalk.com/t/2015-chevy-spark-loss-of-acceleration-problem/140259 "2024-10-03T21:33:53Z")
I have a 2015 Chevy Spark that I can drive for about 30 minutes and then when I come to a stop and try to go, I cannot accelerate more than a mile if I can even go at all. The engine doesn’t rev at all. The RPMS are al… --- ## [Fuel Costs](https://community.cartalk.com/t/fuel-costs/195766)
**Author:** [@jmcarc](https://community.cartalk.com/u/jmcarc)\ **Replies:** 67\ **Last updated:** [August 22, 2024, 9:07pm UTC](https://community.cartalk.com/t/fuel-costs/195766 "2024-08-22T21:07:04Z")
Mechanics and engineers give all kinds of advice on improving fuel economy, such as replacing spark plugs, filters and speed reduction. Eighty-one days from this posting, there is one thing all drivers can do collectivel… --- ## [Shell gas MPG](https://community.cartalk.com/t/shell-gas-mpg/195064)
**Author:** [@Hugemoth\_144444](https://community.cartalk.com/u/Hugemoth_144444)\ **Replies:** 23\ **Last updated:** [June 5, 2024, 1:08pm UTC](https://community.cartalk.com/t/shell-gas-mpg/195064 "2024-06-05T13:08:55Z")
Does Shell gas give your car more MPG? Since it was new I’ve been using regular 87 octane gas from Fred Meyer (Kroger) in my 2018 Versa manual 5 speed with 57000 miles. MPG has averaged 41 since new but the last 3 fill … --- ## [Will there be enough electricity available to transition to electric vehicles (EVs)?](https://community.cartalk.com/t/will-there-be-enough-electricity-available-to-transition-to-electric-vehicles-evs/194066)
**Author:** [@TheWonderful90s](https://community.cartalk.com/u/TheWonderful90s)\ **Replies:** 58\ **Last updated:** [January 1, 2024, 12:48am UTC](https://community.cartalk.com/t/will-there-be-enough-electricity-available-to-transition-to-electric-vehicles-evs/194066 "2024-01-01T00:48:58Z")
Will renewable electricity generation methods be able to scale to cover the increase in electricity consumption resulting from a transition to EVs? What surprised me the most is from the eia.gov link. It shows that the … --- ## [The US gas guzzler tax! While I was distracted learning about CAFE](https://community.cartalk.com/t/the-us-gas-guzzler-tax-while-i-was-distracted-learning-about-cafe/194065)
**Author:** [@TheWonderful90s](https://community.cartalk.com/u/TheWonderful90s)\ **Replies:** 38\ **Last updated:** [December 27, 2023, 5:45pm UTC](https://community.cartalk.com/t/the-us-gas-guzzler-tax-while-i-was-distracted-learning-about-cafe/194065 "2023-12-27T17:45:09Z")
While I was distracted learning about CAFE and track width and wheel base and the minimum fuel economy required to not be fined based on those things this gas guzzler tax was going on for decades.! Currently vehicle mak… --- ## [Video: GM's (and Ford's) electric crate motor (Chevrolet e-motor) - drop in replacment for your ICE](https://community.cartalk.com/t/video-gms-and-fords-electric-crate-motor-chevrolet-e-motor-drop-in-replacment-for-your-ice/193926)
**Author:** [@TheWonderful90s](https://community.cartalk.com/u/TheWonderful90s)\ **Replies:** 16\ **Last updated:** [November 30, 2023, 6:05am UTC](https://community.cartalk.com/t/video-gms-and-fords-electric-crate-motor-chevrolet-e-motor-drop-in-replacment-for-your-ice/193926 "2023-11-30T06:05:46Z")
Link to older thead about drop in replacement electric motors from a different company: Drop in electric EV motor retrofit for older cars? The thing I wonder about these kits is if the battery can be charged while the… --- ## [Chevron plans to buy Hess](https://community.cartalk.com/t/chevron-plans-to-buy-hess/193501)
**Author:** [@jtsanders](https://community.cartalk.com/u/jtsanders)\ **Replies:** 11\ **Last updated:** [October 26, 2023, 10:38am UTC](https://community.cartalk.com/t/chevron-plans-to-buy-hess/193501 "2023-10-26T10:38:01Z")
Chevron announced recently that they plan to buy Hess in a friendly transaction. This will give them greater cash reserves, which they plan to use to buy back more shares. If approved, Chevron will allot $20 billion to s… --- ## [2018 Ford edge significant fuel efficiency loss after Flex plate repair and maintenance](https://community.cartalk.com/t/2018-ford-edge-significant-fuel-efficiency-loss-after-flex-plate-repair-and-maintenance/193254)
**Author:** [@mckaykenpo\_187150](https://community.cartalk.com/u/mckaykenpo_187150)\ **Replies:** 13\ **Last updated:** [October 6, 2023, 9:22pm UTC](https://community.cartalk.com/t/2018-ford-edge-significant-fuel-efficiency-loss-after-flex-plate-repair-and-maintenance/193254 "2023-10-06T21:22:01Z")
Need help troubleshooting why my vehicle has lost fuel efficiency! I drive a 2018 Ford Edge for work. We received a ‘dealer customer service’ report stating that there could be an issue with the Flex Plate. The vehicl… --- ## [How much boost is too much boost?](https://community.cartalk.com/t/how-much-boost-is-too-much-boost/193207)
**Author:** [@cjausfahl221](https://community.cartalk.com/u/cjausfahl221)\ **Replies:** 12\ **Last updated:** [October 4, 2023, 12:55pm UTC](https://community.cartalk.com/t/how-much-boost-is-too-much-boost/193207 "2023-10-04T12:55:04Z")
Hi, I’m a little bit newer on the car scene in the sense that my current car, a 1994 Mitsubishi Eclipse GS, is my first project car to really modify. I’ve been in and around cars and modifications for years, but no one’s… --- ## [Remove water from alcohol for fuel](https://community.cartalk.com/t/remove-water-from-alcohol-for-fuel/192938)
**Author:** [@Zer0.Zer0](https://community.cartalk.com/u/Zer0.Zer0)\ **Replies:** 7\ **Last updated:** [September 19, 2023, 4:23pm UTC](https://community.cartalk.com/t/remove-water-from-alcohol-for-fuel/192938 "2023-09-19T16:23:26Z")
Ive been trying to do some research about adding these water removers (stp water remover) to alcohol (65-80%) and have been coming up empty handed, and dont want to test it outright off the bat without some input first a… --- ## [How can i get more horsepower out of my toyota avalon 2004](https://community.cartalk.com/t/how-can-i-get-more-horsepower-out-of-my-toyota-avalon-2004/192860)
**Author:** [@Rpereina\_186852](https://community.cartalk.com/u/Rpereina_186852)\ **Replies:** 36\ **Last updated:** [September 14, 2023, 5:32am UTC](https://community.cartalk.com/t/how-can-i-get-more-horsepower-out-of-my-toyota-avalon-2004/192860 "2023-09-14T05:32:45Z")
I have a fully stock toyota avalon 2004 and was wondering if theres anything i could do to add more power to it. --- ## [Multimeter is not reading amps](https://community.cartalk.com/t/multimeter-is-not-reading-amps/192510)
**Author:** [@cartalk.u6k6r\_186613](https://community.cartalk.com/u/cartalk.u6k6r_186613)\ **Replies:** 19\ **Last updated:** [August 28, 2023, 10:32pm UTC](https://community.cartalk.com/t/multimeter-is-not-reading-amps/192510 "2023-08-28T22:32:29Z")
I’m attempting to diagnose a parasitic battery drain on my car. First time doing it. I looked at YouTube videos, and it seemed pretty straightforward. edit: vehicle is a 2000 GMC Jimmy edit: multimeter is an AMES DM100… --- ## [Big Engine vs Small Engine Fuel Economy](https://community.cartalk.com/t/big-engine-vs-small-engine-fuel-economy/192286)
**Author:** [@JohnWallace](https://community.cartalk.com/u/JohnWallace)\ **Replies:** 51\ **Last updated:** [August 28, 2023, 9:00pm UTC](https://community.cartalk.com/t/big-engine-vs-small-engine-fuel-economy/192286 "2023-08-28T21:00:17Z")
Hello I am new to this forum. I have a 1.6 engine car (VW Passat 2006) with 115 HP that I want to change due to being quite slow on acceleration (0-60 mph in 11 seconds) and other issues specific to this car I came acro… --- ## [Roll Starting if Fuel Is the Issue](https://community.cartalk.com/t/roll-starting-if-fuel-is-the-issue/192431)
**Author:** [@jmoteff\_186559](https://community.cartalk.com/u/jmoteff_186559)\ **Replies:** 2\ **Last updated:** [August 23, 2023, 3:37pm UTC](https://community.cartalk.com/t/roll-starting-if-fuel-is-the-issue/192431 "2023-08-23T15:37:25Z")
Newbie here. Can you roll start a car that seems to have fuel problems. I can’t start my car. The battery is OK, also have an external source. The starter is cranking the engine. It sounds like the fuel pump is getting … --- ## [Is it cheaper to refuel your EV battery or gas tank? We did the math](https://community.cartalk.com/t/is-it-cheaper-to-refuel-your-ev-battery-or-gas-tank-we-did-the-math/192165)
**Author:** [@PintoKid](https://community.cartalk.com/u/PintoKid)\ **Replies:** 37\ **Last updated:** [August 16, 2023, 9:35pm UTC](https://community.cartalk.com/t/is-it-cheaper-to-refuel-your-ev-battery-or-gas-tank-we-did-the-math/192165 "2023-08-16T21:35:08Z")
This is behind a paywall, but they do give you a few free articles. An interesting comparison and curious that the EVs were not always cheaper. --- ## [My 2002 Chevy blazer keeps trying to kill me](https://community.cartalk.com/t/my-2002-chevy-blazer-keeps-trying-to-kill-me/192003)
**Author:** [@par\_186232](https://community.cartalk.com/u/par_186232)\ **Replies:** 11\ **Last updated:** [August 3, 2023, 4:10pm UTC](https://community.cartalk.com/t/my-2002-chevy-blazer-keeps-trying-to-kill-me/192003 "2023-08-03T16:10:01Z")
My 2002 Chevy blazer stalls and tries to die when I accelerate gently. This is recently become a thing and it’s mostly only noticeable when driving in the city and making frequent slow starts in traffic. When trying to … [Next page](https://community.cartalk.com/c/power-fuel/16.md?page=1)