Lean Burn



Thanks to Suzuki's Lean Burn fuel technology,
you'll be on the water for longer...


Our innovative Lean Burn Control System fuel technology delivers better fuel efficiency and greater fuel savings by predicting fuel needs according to operating conditions and makes fuel-efficient 4-stroke outboards even more economical.

The benefits are delivered over a wide operating range, providing significant improvements in fuel economy offering reductions up to 45%.

Lean Burn works by using real-time computer processes and sensors to optimise fuel delivery by predicting the amount of fuel you’ll need to get where you need to go. It delivers a precise mixture of fuel to the engine allowing it to run on  a more efficient fuel mixture through the use of a lean air-fuel ratio. This achieves remarkable improvements in fuel consumption ensuring you get the most out of every drop.

Lean Burn was first introduced on the DF70A/80A/90A to great acclaim and is available across the range of “A” Series  in both our Midrange and High Performance engines and the DF100B. Combined with Suzuki Precision Control, Lean Burn can deliver the optimum fuel/air mixture to the engine and is designed to save fuel both at low speeds and up into the cruising range.

See the facts

In-house testing shows that while cruising, the DF300AP is 14% more economical than the original non-Lean Burn DF300, without sacrificing any power of the original DF300.

*Fuel saving percentages across our entire range of “A” and “TG” Series engines.

  • DF25A/30A = 16%
  • DF40A/50A = 42%
  • DF60A = 45%
  • DF70A/90A/100A/115A/140A = 14%
  • DF150TG = 15%
  • DF175TG = 16%
  • DF200A = 19%
  • DF250AP/300AP = 14%

*Fuel saving percentages are comparative to previous Suzuki DF engines of the same hp.

If you wish to see more features, check out Timing Chain, Offset driveshaft, Technology & Innovation.

Comparison of fuel consumption per litre for DF140A 

Uses 14% less fuel compared to the original DF140, mainly in the cruising range where the engine is used the majority of the time.

DF140A Graphs 11 16 01


Comparison of fuel consumption per litre for DF150AP/175AP

Compared to the current DF150TG/175TG, the new DF150AP/175AP offer superior fuel consumption over their full operating range.

Especially the DF150AP, which now incorporates both our Drive By Wire Control system and Variable Valve Timing (VVT), shows a fuel economy improvement of 4% (at 40km/h).

DF150 175AP Graphs 11 16         


Comparison of fuel consumption per litre for DF300AP

Uses 14% less fuel compared to the original DF300, mainly in the cruising range where the engine is used the majority of the time. 

300AP LB graph 11 16 01



There is no other outboard brand like it in the world. Suzuki Marine is truly unique. You may think all outboards look the same, but once you get under the surface, you'll see why those in the know, choose Suzuki Marine. Our distinctive character is not what you see, it's what you feel better acceleration, better fuel efficiency and better value...