- Thread starter
- #1
JL Wrangler Forums has just verified that the updated Pentastar 3.6-liter V6 engine that will be available for the 2018 Jeep Wrangler will in fact come standard with Engine Start-Stop (ESS) technology.
We've learned that while the ESS feature can be turned off it will default to "on" with each ignition cycle, similar to the way it operates on other FCA vehicles that offer the feature.
FCA debuted its engine start-stop technology in North America in the 2013 Ram 1500 full-size pickup which it reported to account for a one-mpg city-cycle fuel economy gain in the Ram. The ESS feature made its way into the Pentastar engine family starting with the 3.2-liter Pentastar V6 engine in the 2013 Jeep Cherokee which FCA estimated to provide up to a 3% improvement in both fuel economy and CO2 emissions-reduction. It has since made its way into the updated 3.6-liter Pentastar V6 engine which debuted on the 2016 Jeep Grand Cherokee.
How does the ESS technology work? Once the vehicle's monitors determine that the vehicle has come to a stop, fuel flow is cut and the engine turns off. Larger batteries ensure that the other in-cabin vehicle systems are unaffected from the fuel cut-off. When the brake pedal is released, the engine automatically restarts and the transmission is engaged within fractions of a second, all without any driver intervention.
Since the engine no longer idles for prolonged periods, the result is a reduction in fuel consumption, particularly in city driving.
The new ESS technology combined with other powertrain changes, more efficient engine offerings and an aerodynamic exterior redesign all serve to provide for significant miles-per-gallon gains for the next-generation 2018+ Jeep Wrangler (JL).
For a preview of the technology and its benefits, we refer to FCA's previous statements regarding the ESS feature standard on the 3.2-liter V6 Pentastar engine on the 2013 Jeep Cherokee (now standard on the updated 3.6-liter V6 Pentastar which debuted for the 2016 Jeep Grand Cherokee) which we expect will be similar for the JL Wrangler. The FCA comments below were in regards to the 3.2-liter V6 Pentastar's ESS technology:
ESS applications in the Chrysler 200 and Jeep Cherokee will account for an estimated C02 emissions-reduction of up to three percent. The technology made its NAFTA-region debut in the Ram 1500 full-size pickup. ESS accounts for a one-mpg city-cycle fuel-economy gain in the Ram, the most fuel-efficient truck in its segment.
ESS works this way:
We've learned that while the ESS feature can be turned off it will default to "on" with each ignition cycle, similar to the way it operates on other FCA vehicles that offer the feature.
FCA debuted its engine start-stop technology in North America in the 2013 Ram 1500 full-size pickup which it reported to account for a one-mpg city-cycle fuel economy gain in the Ram. The ESS feature made its way into the Pentastar engine family starting with the 3.2-liter Pentastar V6 engine in the 2013 Jeep Cherokee which FCA estimated to provide up to a 3% improvement in both fuel economy and CO2 emissions-reduction. It has since made its way into the updated 3.6-liter Pentastar V6 engine which debuted on the 2016 Jeep Grand Cherokee.
How does the ESS technology work? Once the vehicle's monitors determine that the vehicle has come to a stop, fuel flow is cut and the engine turns off. Larger batteries ensure that the other in-cabin vehicle systems are unaffected from the fuel cut-off. When the brake pedal is released, the engine automatically restarts and the transmission is engaged within fractions of a second, all without any driver intervention.
Since the engine no longer idles for prolonged periods, the result is a reduction in fuel consumption, particularly in city driving.
The new ESS technology combined with other powertrain changes, more efficient engine offerings and an aerodynamic exterior redesign all serve to provide for significant miles-per-gallon gains for the next-generation 2018+ Jeep Wrangler (JL).
For a preview of the technology and its benefits, we refer to FCA's previous statements regarding the ESS feature standard on the 3.2-liter V6 Pentastar engine on the 2013 Jeep Cherokee (now standard on the updated 3.6-liter V6 Pentastar which debuted for the 2016 Jeep Grand Cherokee) which we expect will be similar for the JL Wrangler. The FCA comments below were in regards to the 3.2-liter V6 Pentastar's ESS technology:
- Estimated fuel-economy improvement up to 3%
- Estimated C02 emissions-reduction up to 3%
- Enhanced high-speed/high-durability starter and advanced control strategies contribute to seamless, automatic activation
- Intuitively adapts to driving styles for optimal responsiveness, driving enjoyment
ESS applications in the Chrysler 200 and Jeep Cherokee will account for an estimated C02 emissions-reduction of up to three percent. The technology made its NAFTA-region debut in the Ram 1500 full-size pickup. ESS accounts for a one-mpg city-cycle fuel-economy gain in the Ram, the most fuel-efficient truck in its segment.
ESS works this way:
- Engine controls constantly monitor vehicle speed
- When the vehicle brakes to a stop, fuel flow is cut and engine turns off – events that save gas and reduce emissions
- Beefier batteries maintain other vehicle systems so in-cabin comfort is unaffected
- When the brake pedal is released, the engine automatically restarts and the nine-speed automatic transmission, the segment-exclusive nine-speed automatic transmission is engaged – all within 0.3 seconds
Sponsored
Last edited: