1,000 euros. So much stand between a O pel Insignia with 140 hp 1.8-liter petrol engine and the diesel model that generates 130 hp from a two-liter displacement. This is a comparatively low diesel surcharge, especially since the version with the surname Ecoflex offers a whole range of other ingredients to reduce consumption: Michelin tires with low rolling resistance, for example, a longer final drive ratio and an aerodynamic lining for the underbody.
The Opel Insignia Diesel is only worthwhile with high mileage
A closed radiator grille and a flexible front spoiler lip serve the same purpose. If the driver adheres to the gearshift indicator, which is also part of the package, the Insignia is extremely stingy with the contents of its tank. In normal everyday operation, the consumption display in the on-board computer regularly has a six in front of the decimal point, and the test consumption levels off at 6.8 liters /100 km. The gasoline engine, on the other hand, must not be considered a savings specialist, even among its peers, because it pulls over two liters more through its combustion chambers with a comparable driving style. However, due to the higher tax burden on the diesel, the financial settlement only works out in favor of the more economical engine when the annual mileage is above average.
Hum and nails in the Opel Insignia Diesel
The Ecoflex package in the Opel Insignia Diesel reduces driving comfort
The traditional advantage of smoother, quieter running can be enjoyed by the rivalHowever, petrol engines only play out imperfectly. The 1.8-liter four-cylinder is a highly conventional design that has to do without the support of a turbocharger. It only runs reasonably smoothly up to the middle speed range. Anyone who turns it off - and that is relatively often necessary in view of the unimpressive pulling power in the lower range of the engine speed range with a reasonably brisk driving style - elicits vulgar humming noises. Nevertheless, it offers better driving comfort overall, which is primarily due to the Ecoflex package of the Opel Insignia Diesels. Because its body is lowered by one centimeter. This has aerodynamic advantages, but comes at the expense of the suspension. The higher weight of the diesel engine and the resulting greater load on the front axle also play a role in the chassis set-up - in any case, the diesel insignia is stimulated to uncomfortable stuck movements by transverse joints on the motorway.
Without the Ecoflex package, the consumption of the Opel Insignia increases by 0.6 liters
The Insignia with the petrol engine has such shortcomings strange - it offers a very balanced suspension comfort in line with its class, and it is a bit easier to steer. Those who want smoother chassis properties with the Opel Insignia Diesel (the Opel Insignia Ecoflex in the driving report) can do without Ecoflex and save 350 euros. But this increases consumption again, under normal conditions by at least 0.6 liters. In the eco-balance, of course, you still leave the gasoline engine far behind.