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Fuel saving for motorhomes: dangerous truck slipstream trick and safe alternatives

21.05.2026 03:04 1 min 1 source
chip.de DEU

In 2026, rising fuel prices in Germany could make it record-expensive, prompting motorhome owners to look for ways to reduce diesel consumption. One discussed method is driving in the aerodynamic shadow of a truck.

A risky saving method

Studies show that driving at a distance of less than 50 meters behind a truck CAN save 5% to 20% of fuel. However, such a distance is prohibited by traffic rules and sharply increases the risk of an accident. The safe permitted interval of 50 meters does not provide a significant fuel-saving effect. Experts do not recommend this method.

Safe alternatives

You can reduce fuel consumption in a motorhome by:

  • Smooth driving and maintaining a speed of up to 90 km/h.
  • Timely tire changes and reducing excess weight.
  • Closing windows to improve aerodynamics.

Aggressive driving increases fuel consumption by 30% for cars, and for heavy motorhomes the effect can be even more significant.

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Story sources

Motorhome in the slipstream: risky or practical fuel-saving trick?

09.04.2026 chip.de DEU

🇨🇭 Switzerland — fuel prices

Updated: 06.06.2026

Diesel

$2.66 /l

CHF2.12 · €2.31/l

129 of 132

pricier than 97% of countries

Petrol

$2.41 /l

CHF1.92 · €2.09/l

127 of 133

pricier than 95% of countries

LPG

$1.45 /l

CHF1.15 · €1.26/l

47 of 48

pricier than 96% of countries

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