Premium unleaded gasoline meeting ASTM specification D4814 with a posted octane rating of 93 — (R+M)/2 — is highly recommended for best performance and fuel economy. Unleaded gasoline with an octane rated as low as 87 can be used.
Do GMC trucks need premium gas?
2022 GMC Sierra 1500/Chevy Silverado 1500, 6.2L V-8
As we previously reported, the Sierra/Silverado with the 6.2-liter V-8 engine recommended 93+ octane, which can be hard to find in some areas. But the 2022 owner’s manual says a minimum of 91 is recommended but 87 can be used if the higher octane is unavailable.
What kind of gas mileage does a 6.2 l get?
Q: What kind of gas mileage does the 6.2-liter V-8 get? A: Depending on your driving style, you can hope to return an average of 14 to 15.5 mpg, or 490 to 542 miles per tank.
Do you have to use premium gas in Yukon Denali?
With the 6.2 engine and RWD, the Yukon is rated at 15/20 and the XL is rated at 14/20; with 4WD, both are rated at 14/19. Premium-grade gas is required for the 6.2 engine; the 5.3 runs on regular gas.
Can I run 87 octane in my 6.2 Silverado? – Related Questions
Can you run 87 octane in a Yukon Denali?
5 Answers. I expect your car will run just fine on 87 octane. Look in the owners manual or on the gas cap to confirm.
What happens if you use regular instead of premium gas?
However, remember this: when a premium fuel engine runs on regular fuel, there’s a risk of combustion of the fuel mix before the spark plug even lights up. This causes a phenomenon called knocking, which is likely to damage the engine.
Do turbocharged engines need premium gas?
Does turbo car need premium gas? Yes! Turbos generate more heat and boost which contributes to pre-ignition condition of the fuel in the engine. Premium gas is higher octane, so it resists pre-ignition better than regular gas.
What happens if I put 87 instead of 93?
If the octane rating is less than 91, you could damage the engine and may void your vehicle warranty. If heavy knocking is heard when using gasoline rated at 91 octane or higher, the engine needs service.”
Do you get better mpg with premium gas?
Premium gas has a higher resistance to engine knock in luxury and performance vehicles with turbochargers or high-compression engines, so you can hit that horsepower smoothly. Additionally, premium gas can increase fuel efficiency, potentially bringing better gas mileage for longer while decreasing emissions.
What type of gas does Yukon Denali take?
| Pricing |
| Power |
420 hp @ 5,600 rpm (313 kW) |
| Torque |
460 lb·ft @ 4,100 rpm (624 N·m) |
| Induction |
Atmospheric |
| Fuel type |
Regular |
What grade fuel for Yukon Denali?
2022 Yukon XL 6.2 Now Recommends 91 Octane vs. 93 | GM Authority.
Does GM 2.7 Turbo require premium fuel?
Yes, it is recommended that 91-octane premium fuel or higher be used in the 2.7-liter Turbo 4-cylinder engine. Premium gas will help produce 310 horsepower and 430 pound-feet of torque for maximum power output, performance, and towing capability.
What is the difference between 5.3 L and 6.2 L?
Both engines achieve a max payload of at least a ton: the 6.2L can handle 2,020 pounds in the 2022 GMC Sierra 1500, while the 5.3L hauls 2,030 pounds in the 2022 Chevy Silverado 1500. When it comes to comparing base engines without the towing package, the 5.3L seems to win out over the 6.2L by about 400 pounds.
Why do supercharged engines need premium gas?
A higher ratio extracts more power during the expansion stroke, but it also creates higher cylinder pressures and temperatures, which tend to induce knock. In supercharged engines boost pressure behaves the same way. That’s why the highest-performance engines require higher-octane fuel.
Do Turbo engines run better with premium gas?
The trade-off is that turbocharged engines have a higher compression ratio than non-turbo engines. That means they’re more prone to detonation and more likely to need premium gas.
Do I really need to use premium gas?
In many cases, you can get away with gassing up with regular fuel with no noticeable issues except for minor losses in performance and gas mileage. But it’s not worth taking the risk. Bottom line: If your owner’s manual says that premium fuel is required, you should use it.
Does having a turbo waste more gas?
A turbocharged engine turns into a fuel-hog under hard acceleration, because the large volume of air being pumped into the cylinders must be matched by a larger volume of fuel. Explaining the abnormally high consumption of a turbocharged engine under high load takes us into some interesting areas of engineering.
What is the best gas for turbo engines?
Engines with high compression ratios or turbochargers often require high octane fuel found in premium gas for optimal performance and fuel efficiency. However, the majority of cars on the road today are optimized to run on regular gas.
Do turbos need premium gas?
Does turbo car need premium gas? Yes! Turbos generate more heat and boost which contributes to pre-ignition condition of the fuel in the engine. Premium gas is higher octane, so it resists pre-ignition better than regular gas.
Do turbocharged cars need premium fuel?
High octane fuel is primarily used on high-performance engines such as turbocharged cars because the fuel does not burn prematurely, although many car owners choose high octane fuel for use in their non-turbo powered vehicles. Unless your car explicitly needs the high octane fuel, you may not need to use it.