First Fuel Economy Ratings for the 2027 Corvette’s LS6 V8 Are Out

Corvette owners have their reasons for driving America’s Favorite Sports Car. Whether it’s performance, ride handling, or that open top driving experience that puts the wind in your face, most owners are probably not thinking about their official fuel economy ratings while out on the road.

However, it is an important metric to be aware of especially when GM debuts a new V8 engine that will power both the Stingray and Grand Sport models.

The new 6.7-liter LS6 V8 engine is even larger than the outgoing 6.2-liter LT2 V8 and with the larger engine comes more power. The new LS6 produces 535-hp and 520 lb-ft of torque, which is up from the 495-hp and 470 lb-ft of torque in the previous Stingray with the Z51 Performance Package.

Automakers are required to share the fuel economy ratings on its vehicle’s window sticker, and there’s a process each engine has to undergo for reporting their fuel economy ratings with consumers. Here in the USA we have FuelEconomy.gov which publishes all the ratings for cars sold in the USA, while customers north of the border rely on Natural Resources Canada for fuel consumption ratings. We don’t have the rating yet from the USA, but NRCan just published their ratings for the LS6 which allows us to compare and contrast to the previous LT2 ratings.

Natural Resources Canada (NRCan) provides us with the following LS6 fuel economy ratings, and we have the LT2 numbers as a comparison:

• City – 15.7 L/100 km, up from 15.1 L/100 km
• Highway – 9.4 L/100 km, No Change
• Combined – 12.9 L/100 km, up from 12.5 L/100 km

The metric ratings can be a little confusing to our American sensibilities, which is why NRCan also publishes the data in miles per gallon:

• City – 15 mpg, down from 15.6 mpg
• Highway – 25 mpg, No Change
• Combined – 18.2 mpg, down from 18.8 mpg

According to the ratings on NRCan, the larger LS6 V8 engine does consume slightly more fuel than the outgoing 6.2-Liter LT2 V8. But it’s not that much of a significant change year over year that consumers will notice over the glorious exhaust note of the new engine or the improved torque figures.

We’ll follow up on this once the USA’s Fuel Economy website is updated with the new LS6 ratings.

Source:
Natural Resources Canada via emptytank.ca

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