Fuel Economy Discuss how to achieve better fuel economy. Wed, 15 Jul 2026 11:11:49 +0000 Wed, 15 Jul 2026 11:11:49 +0000 CleanMPG http://www.cleanmpg.com/community/index.php?forums/5/ Is it harder to hypermile a car with high horsepower? Wed, 12 Nov 2025 22:56:29 +0000 http://www.cleanmpg.com/community/index.php?threads/57484/ http://www.cleanmpg.com/community/index.php?threads/57484/ invalid@example.com (Appletank) Appletank
When compared to the Prius, the engine is loaded at 85% or...

Is it harder to hypermile a car with high horsepower?]]> 13 Anticipating a Stop Tue, 16 Sep 2025 17:02:23 +0000 http://www.cleanmpg.com/community/index.php?threads/57464/ http://www.cleanmpg.com/community/index.php?threads/57464/ invalid@example.com (featherfoot) featherfoot 3 MPG Increase - Non-Ethanol Gas - What to Expect? Thu, 10 Jul 2025 03:50:33 +0000 http://www.cleanmpg.com/community/index.php?threads/43817/ http://www.cleanmpg.com/community/index.php?threads/43817/ invalid@example.com (Mightymouse13) Mightymouse13
We're driving in her 08 Nissan Versa SL Hatchback with CVT. Normal highway without applying any hypermiling techniques is 35mpg.

How many mpg do you think I will gain? I know someone is dying to tell me ethanol has 90% the energy of gas so a gallon of E10 has 98% the energy of real gas, etc. I'm looking for some real world advice, not btu calculations!...

MPG Increase - Non-Ethanol Gas - What to Expect?]]> 148 Questions about going uphill Wed, 24 Jul 2024 21:40:39 +0000 http://www.cleanmpg.com/community/index.php?threads/57300/ http://www.cleanmpg.com/community/index.php?threads/57300/ invalid@example.com (Appletank) Appletank
I think I roughly lose 20-25%, and nothing seems to make it get that much better, outside of getting an even better downhill run and raising trip avg that way. I can't tell the difference between PnG or just holding steady, at best it's like going from 52 to 54.

The average speed is like, 20 - 40 mph for the steepest segment, which really sucks, can't get any momentum going.]]> 3 Estimating optimal acceleration mpg? Wed, 29 Mar 2023 22:05:58 +0000 http://www.cleanmpg.com/community/index.php?threads/57089/ http://www.cleanmpg.com/community/index.php?threads/57089/ invalid@example.com (Appletank) Appletank
So with the sketchy assumption...

Estimating optimal acceleration mpg?]]> 15 Ioniq with a Boot (#BritishEnglish) - The 2023 Elantra Hybrid Sat, 24 Sep 2022 18:51:51 +0000 http://www.cleanmpg.com/community/index.php?threads/56987/ http://www.cleanmpg.com/community/index.php?threads/56987/ invalid@example.com (MaxxMPG) MaxxMPG 3 Bump-starting on V8 Manuals? Sun, 28 Aug 2022 21:41:33 +0000 http://www.cleanmpg.com/community/index.php?threads/56825/ http://www.cleanmpg.com/community/index.php?threads/56825/ invalid@example.com (Nifsu) Nifsu 6 Try for max MPG !! Fri, 10 Jun 2022 17:12:18 +0000 http://www.cleanmpg.com/community/index.php?threads/56902/ http://www.cleanmpg.com/community/index.php?threads/56902/ invalid@example.com (billy) billy 23 Is it possible to drive a Jeep on the cheap? Wed, 25 May 2022 01:41:37 +0000 http://www.cleanmpg.com/community/index.php?threads/56897/ http://www.cleanmpg.com/community/index.php?threads/56897/ invalid@example.com (MaxxMPG) MaxxMPG JEEP - Just Empty Every Pocket. Is it possible to daily drive one of these things without going broke?

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Prowling the suburbs by the millions, the 5000 pound 4x4 is today's ubiquitous family car​

Another CleanMPG success story in the making. Let's see how hypermiling techniques can be used even with the big thirsty monsters. We will find out that doing exactly that can offer rather large mpg gains, if you are measuring in terms of percentage.

As we already know, vehicles...

Is it possible to drive a Jeep on the cheap?]]> 7 My 2020 Prius MPG.... Mon, 23 May 2022 22:28:26 +0000 http://www.cleanmpg.com/community/index.php?threads/56899/ http://www.cleanmpg.com/community/index.php?threads/56899/ invalid@example.com (billy) billy
Previously I had done lots of city rideshare work, but no more. In city, I could average 84 mpg in warmer months. Now my lifetime MPG has gone down to 80.45, as I am mostly on the freeway. I have returned to many of the freeway hypermile methods I used years ago with my Honda Insights. And in this Prius, I spend a lot of time coasting in neutral.

50 lbs air in the stock tires,...

My 2020 Prius MPG....]]> Tips for a non-hybrid, auto-trans vehicle? Sun, 17 Oct 2021 04:49:59 +0000 http://www.cleanmpg.com/community/index.php?threads/56414/ http://www.cleanmpg.com/community/index.php?threads/56414/ invalid@example.com (Appletank) Appletank
Is there any point to coasting, because of the whole engine braking problem (P&G)? Or should I just try to keep the car in highest gear, lowest RPM, steady state?]]> 22 Chevrolet Cruze 1.6 109 HP Fuel Economy Sun, 26 Apr 2020 09:49:47 +0000 http://www.cleanmpg.com/community/index.php?threads/56632/ http://www.cleanmpg.com/community/index.php?threads/56632/ invalid@example.com (UberJager) UberJager My fuel economy test with the Chevrolet Cruze 1.6. This 2010 model car with Euro5 regulations. Consumption is 5.7 liters / 100km.

]]> 2 Alternator Management System (AMS) Sat, 25 Apr 2020 21:24:07 +0000 http://www.cleanmpg.com/community/index.php?threads/56631/ http://www.cleanmpg.com/community/index.php?threads/56631/ invalid@example.com (UberJager) UberJager


Hi
Small cars in Europe have a system called the AMS system. This system is about using the battery of the car effectively. Efficiency is obtained from the engine by performing alternator management.

I wanted to show you how it works in this video.


View attachment 35785

]]> 6 NEDC, WLTP w/ RDE, and EPA??? Thu, 02 Jan 2020 19:15:33 +0000 http://www.cleanmpg.com/community/index.php?threads/56561/ http://www.cleanmpg.com/community/index.php?threads/56561/ invalid@example.com (xcel) xcel Neat: 40mpg Ecovette Thu, 05 Dec 2019 18:07:13 +0000 http://www.cleanmpg.com/community/index.php?threads/56502/ http://www.cleanmpg.com/community/index.php?threads/56502/ invalid@example.com (Appletank) Appletank

Guy tunes his V8 vette with lean burn mode at under 2k rpm, 6th gear.]]> 13 Q: Chasing Ignition timing angle? Thu, 21 Nov 2019 15:17:50 +0000 http://www.cleanmpg.com/community/index.php?threads/56475/ http://www.cleanmpg.com/community/index.php?threads/56475/ invalid@example.com (Appletank) Appletank 5 Cruise Control MPG Mon, 04 Nov 2019 23:59:17 +0000 http://www.cleanmpg.com/community/index.php?threads/54392/ http://www.cleanmpg.com/community/index.php?threads/54392/ invalid@example.com (Hypochondriac) Hypochondriac 21 Mileage Gains Using Ethanol Seen 20% Higher Than EPA Says Fri, 01 Nov 2019 03:22:59 +0000 http://www.cleanmpg.com/community/index.php?threads/48364/ http://www.cleanmpg.com/community/index.php?threads/48364/ invalid@example.com (JohnM) JohnM
http://www.bloomberg.com/news/2013-09-06/mileage-gains-using-ethanol-seen-20-higher-than-epa-says.html?cmpid=yhoo]]> 65 Hypermiling a VW TSI (turbo direct injected) engine Sun, 22 Sep 2019 15:32:48 +0000 http://www.cleanmpg.com/community/index.php?threads/56395/ http://www.cleanmpg.com/community/index.php?threads/56395/ invalid@example.com (swineone) swineone
Old timer here (even placed 1st on one of the B-league of the hypermiling competitions about 10 years ago, when I had a Honda Fit), but I haven’t visited the site in a while. However, I’ve been applying what I learned here ever since.

I just sold my old car and bought a new one, which is a Volkswagen up! with a 1.0 TSI flex-fuel (ethanol and gasoline) engine (3 cylinders, turbo and direct injection). By the way, I bought this car because it is advertised as the most fuel-efficient non-hybrid car in Brazil. This prompted me to come back here to see if I can learn something...

Hypermiling a VW TSI (turbo direct injected) engine]]> 3 Sometimes when talking to the highly educated, you just have to do an eye roll Mon, 16 Sep 2019 10:23:57 +0000 http://www.cleanmpg.com/community/index.php?threads/54996/ http://www.cleanmpg.com/community/index.php?threads/54996/ invalid@example.com (ALS) ALS
Well the conversation immediately went to fuel economy and how the new ICE motors are quickly gaining on the Hybrids and this isn't a good trend for the BEV's, especially Tesla.

Anyways I brought up what I had learned from Wayne with his experience with Shell and how advanced the Top Tier gasoline's are today, and how they DO help you increase your fuel mileage. I explained my experience with switching over to Shell exclusively.

I got the all gasoline comes out of the same refinery...

Sometimes when talking to the highly educated, you just have to do an eye roll]]> 75