Scania’s Euro 6 technology – proven and cost-effective

Scania’s Euro 6 technology – proven and cost-effective

The number of truck engines in Scania’s Euro 6 diesel range has grown to 11, with the addition of a 13-litre, 6 cylinder 370 hp and a 16-litre, 730 V8.

Scania now offers diesel engines ranging from 250 hp right up to 730 hp. The company also offers two Euro 6 gas engines and two biodiesel engines, suitable for a variety of applications. Customers considering buying their first Euro 6 truck can rest assured that by choosing Scania they will get proven, reliable technology that allows for cost-effective performance.

High torque versus power rate

Scania has used its vast experience of both EGR and SCR to develop its Euro 6 engine range. The choice of 11 diesel engines means customers will be able to find the optimal output level and engine characteristics for their demanding appli­cations, without compromising driveability or fuel economy.

The robust 370 inline six is a key addition to the Euro 6 engine range. It is characterised by its high torque, delivering an impressive 1,900 Nm at 1,000 r/min. This high torque-to-power ratio comes in handy for applications where heavy loads need to be occasionally dealt with or where the truck has to do a lot of start-and-stop work.

Another flexible feature is that the gas engines, 280 or 340 hp, can be adapted to run on compressed natural gas (CNG), liquefied natural gas (LNG) or biogas, making them very adaptable to local fuels. Customers will benefit from the gas engines’ exceptional torque and flexibility and this comes as a result of Scania’s investment in Euro 6 technology.

First to deliver

Meeting Euro 6 demands has been something of a challenge for all OEMs. Scania was the first manufacturer to deliver Euro 6 engines and this now benefits customers in terms of reliability and fuel consumption.

Joel Granath, Vice President for Product Management at Scania Trucks, says customers are in the unique position of having a broad range of proven Euro 6 engines to choose from. “We were the first OEM to actually deliver Euro 6 engines, more than two years ago,” he says. “They met all expectations, and thanks to Scania’s vast knowledge we have been able to develop and introduce a full Euro 6 range well ahead of the legislation deadline, and well ahead of most competitors.”

Scania R 490 4x2 Streamline , Topline cab and Euro 6 engines. Photo: Gustav Lindh 2013

Scania R 490 4×2 Streamline , Topline cab and Euro 6 engines.
Photo: Gustav Lindh 2013

A delicate balance

Complying with the Euro 6 emission standard calls for a fine engineering balance, regardless of which technologies are used. Scania offers a number of choices, such as the 13 litre, 410 hp inline six that utilises only SCR for the aftertreatment process. This particular engine offers excellent fuel economy in combination with a less complex technology. It doesn’t make use of expensive components such as VGT turbo or EGR system.

“We developed this particular engine with our long-haulage fleet customers in mind,” Granath says. “It’s ideal for long-haulage applications in Europe. While producing maximum torque all the way down to 1,000 r/min, this engine is around 3 percent more economical than the much-appreciated Scania 400 hp Euro 5 EGR engine. Judging from the market response we have seen so far, this is definitely something that our customers prize.”

The AdBlue consumption of Scania’s Euro 6 engines with only SCR is on average 6 percent of the diesel consumption. The corresponding figure for an engine with both EGR and SCR is around 3 percent under normal conditions. Scania has developed six different AdBlue tanks. These provide flexibility and ensure customers are able to carry enough AdBlue for a week’s driving or two diesel fill ups. Three of the tanks are “hidden”, mounted inside the chassis, leaving plenty of space on the outside for other equipment or diesel fuel tanks.

Ready for serious work

All the members of the Euro 6 engine range continue in the Scania engineering tradition. Usable torque is delivered already from 1,000 r/min. And every Scania engine provides a torque-to-power ratio that is among the highest available in their respective segments. Coupled with renowned fuel efficiency and durability, they offer both driver appeal and outstanding total cost of operation.

The 450 and 490 hp 13-litre engines are based on further refinement of the former 440 and 480 hp models. They were the first generation of Euro 6 engines, which Scania started delivering more than two years ago. Independent tests have shown that these second-generation Euro 6 engines are even more fuel efficient than their predeces­sors. The new 450 hp engine is available in P-, G- and R-series and the new 490 hp unit in G- and R-series trucks.

Also the 320 and 360 hp 9-litre engines with only SCR are optimised for low rev cruising and can be geared for economical cruising between 1,100 and 1,200 r/min. The exhaust brake produces 190 kW at 2,400 r/min. Both the 320 and the 360 can also be adapted for 100 % biodiesel (please see separate press release about alternative fuels).

Aftertreatment leader

Engine equipment varies between EGR+SCR models and engines with SCR only. The aftertreatment system located in the silencer unit is modularised and is the same size for all inline engines. The V8 unit is only 270 mm longer, containing two parallel particulate filters and three parallel SCR and ammonia slip circuits.

The regeneration required for particle filters is normally entirely independent of the vehicle’s engine management system. Drivers do not have to monitor anything or alter their driving style, all that happens when regeneration is in progress it is indicated on the instrument panel.

An engine for every purpose

Scania customers have access to an engine range to cover needs around the globe, for every relevant emission regulation and a great many applications. Scania also offers the widest available choice of alternative fuel engines; some of the Scania Euro 6 diesel engines will be able to run on up to 100 percent biodiesel (please see separate press release). All Scania Euro 6 diesel engines can handle a blend with up to 10 percent biodiesel without any need for preparation.

“Buying a new truck is a huge investment,” Granath says. “Scania’s customers should be able to feel reassured that the new technology is robust and that their operations will not suffer disruptions. They should know that their investment is protected and that there is a reliable second-hand value for those who choose a Scania.”