fuel consumption Archives

November 5, 2023November 12, 2023

Dataset: 2009 Volkswagen Polo 1.2 R6 vs. 2012 Toyota Yaris Hybrid fuel consumption

Sven Mahler

Fuelcons | Real world fuel consumption data and analysis | www.fuelcons.com | Mahler@fuelcons.com

This dataset is the basis of the article titled “Comparison of 2009 Volkswagen Polo 1.2 R6 and 2012 Toyota Yaris Hybrid fuel consumption under economic driving conditions”, published on Fuelcons on February 1, 2020. The dataset contains some additional information and is free for download for further research/use.

September 29, 2023November 11, 2023

Snapshot: effect of tire pressure on rolling resistance

metrompg.com series | Highlighted on Fuelcons

In this further post published on metrompg.com, the impact of tire pressure on rolling resistance was assessed using two different vehicles: a 1998 Pontiac Firefly (Geo Metro) and a 1999 Toyota Camry. The experiments were conducted on a paved slope with flat run-out. The methodology involved inflating the tires to different pressures (20 PSI [1.38 bar] to 60 PSI [4.14 bar]) and then letting the cars coast down the slope with engine off, transmission in neutral, and brakes released. Distances to marked “stop points” were measured using a distance measuring wheel (some kind of).

September 2, 2023November 11, 2023

Research on the Effect of Road Height Profile on Fuel Consumption during Vehicle Acceleration

Hanzl et al. Technologies. 2022; 10: 128 | Highlighted on Fuelcons

This article by Hanzl et al. addresses research on vehicle fuel consumption during acceleration and how road profiles affect it. The research specifically examined how road height profiles impact fuel consumption during acceleration, focusing on a 30-meter stretch of flat and downhill (-8.5%) surfaces. The study involved 20 acceleration tests on each type of road using a Kia Ceed vehicle. The results showed that fuel consumption during downhill acceleration was 31.4% lower compared to flat surface acceleration.

August 27, 2023November 11, 2023

Mini-experiment: the wrath of roof racks

metrompg.com series | Highlighted on Fuelcons

Between 2005 and 2009, Darin, the host of metrompg.com, shared some of his experiments on his vehicle’s fuel consumption on…metrompg.com!

Each individual post includes an introduction, a description of the conducted experiments and their results, as well as a discussion. Although the data is somewhat older, it still holds relevance, at least in terms of conventional vehicle fuel consumption.

Fuelcons plans to feature these experiments in a “metrompg.com series,” starting with this study on the adverse impact of a roof rack on fuel consumption.

February 1, 2020November 12, 2023

Comparison of 2009 Volkswagen Polo 1.2 R6 and 2012 Toyota Yaris Hybrid fuel consumption under economic driving conditions

Sven Mahler

Fuelcons | Real world fuel consumption data and analysis | www.fuelcons.com | Mahler@fuelcons.com

ABSTRACT

The aim of the present study was to compare the average fuel consumption (per tank of fuel) of the gasoline-powered 2009 Volkswagen Polo 1.2 R6 (Polo) with that of the 2012 Toyota Yaris Hybrid (YHSD) under consideration of underlying average temperatures and speeds. Both vehicles were sequentially driven by the same driver on comparable routes and with the intention to save fuel. The latter included the application of hypermiling techniques, especially when driving the Polo. Covered distances were 62,629 km (Polo) and 50,069 km (YHSD). Overall, the average fuel consumption of the YHSD was 19% lower than that of the Polo (4.10 vs. 5.04 L/100 km). Using multiple linear regression analysis, the effect of average temperature on average fuel consumption was found to be comparable for both vehicles (− 0.0408 L/100 km and − 0.0397 L/100 km per increase of one degree Celsius for the Polo and the YHSD, respectively). In contrast, an opposing impact of average speed was observed (− 0.0185 L/100 km [Polo] and + 0.0249 L/100 km [YHSD] for each additional km/h in average speed). The results are discussed in light of type-approval- and real world fuel consumption figures.