The owners manual states 87. There is no difference if you get 93. Only use top tier fuel, with detergents.
What Gas in your 1.6T?
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Mine just says this in the app, but then again I'm also like 1 maintenance service behind you.
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I've also only been filling up 89 at Chevron since I got the car. The gas station is just right down the street and usually the cheapest in the area so it's one I always fill up with. lol
I've also only been filling up 89 at Chevron since I got the car. The gas station is just right down the street and usually the cheapest in the area so it's one I always fill up with. lol
The dealer told me the app is completely separate from the cars service intervals and the dealer intervals 🤦🏼♂️
I run 87 Top Tier just like the manual suggests.
The car isn't going to benefit from 91, 92, or 93 gasoline because it's not a high compression engine. You may gain a slight increase in average miles per gallon since your car is working harder to ignite the higher grade gasoline, but you're just wearing out the spark plugs that much faster, and possibly putting additional wear and tear on your alternator to fire up the spark plugs every time. If you're going to run premium gasoline, I'd recommend getting hotter plugs. Personally I'd also tune the engine for a higher air/fuel ratio to make use of the premium gasoline as well, but that's not a possibility with the K5 just yet.
The car isn't going to benefit from 91, 92, or 93 gasoline because it's not a high compression engine. You may gain a slight increase in average miles per gallon since your car is working harder to ignite the higher grade gasoline, but you're just wearing out the spark plugs that much faster, and possibly putting additional wear and tear on your alternator to fire up the spark plugs every time. If you're going to run premium gasoline, I'd recommend getting hotter plugs. Personally I'd also tune the engine for a higher air/fuel ratio to make use of the premium gasoline as well, but that's not a possibility with the K5 just yet.
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Question you sound you know much more lol! But the compression ratio is 10.5 to 1
, Isn't that considered high compression?
That's a good question. The term "high compression" is relative. Back in the day 10.5:1 would be considered high, but these days there are engines easily pushing 12:1 and probably higher than that. Our cars also coming from the factory with forced induction will lower the compression ratio, and I'm honestly not sure if the 10.5 to 1 is the motor's ratio by itself or the ratio after determining the air/fuel mixture.
In any case higher octane fuel only has one purpose, which is to not explode before it's supposed to. If the engine isn't knocking with a lower octane gasoline then there is no point to adding higher octane to it. Hope this info helps!
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It isn't trust me..........I have a 2016 Hyundai Veloster Turbo with a 123,000 miles on it and going strong. Which, uses the same 1.6L Turbo used in the K5 GT Line and I only run 87 octane and have never had a problem.
I did try Premium a couple of times when the car was fairly new but it never improved gas mileage nor performance. At least that I could tell.......
Using a higher octane fuel will not give you better gas mileage or increased performance. This is a given with all standard gasoline engines.
With the obvious being stated, I'm currently averaging 28 mpg (which is lower due to 10* weather, using the remote start, and the winter fuel mix here in the midwest). In the summer I usually average around 31-32 with AWD.
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Figured I’d throw my 2 cents after 121,000 miles on my 2021 k5 GT-line 1.6t.
my car runs like a dream on non ethanol gas. It’s heads and shoulders above all else. It’s like uncut meth, or like the top shelf 100 proof vodka at the liquor store vs the 40 proof hangover sold at the gas station. Super responsive. More Power.
after that, 87 is the worst performance with exception to Shell and Sunoco. My understanding is the knock ****** feature that allows us to use 87 octane in high compression 10:1 engine drops power by delaying the spark.
as For whether 10:1 is high compression or not, I am following the guidelines posted by shell and available in many racing and muscle car forums. Granted…9:1 is not high compression so it’s the break in point.
Regardless, my car runs like *** on 87. 89 is better and I feel improved response at 91 but not like I feel with non ethanol.
my car runs like a dream on non ethanol gas. It’s heads and shoulders above all else. It’s like uncut meth, or like the top shelf 100 proof vodka at the liquor store vs the 40 proof hangover sold at the gas station. Super responsive. More Power.
after that, 87 is the worst performance with exception to Shell and Sunoco. My understanding is the knock ****** feature that allows us to use 87 octane in high compression 10:1 engine drops power by delaying the spark.
as For whether 10:1 is high compression or not, I am following the guidelines posted by shell and available in many racing and muscle car forums. Granted…9:1 is not high compression so it’s the break in point.
Regardless, my car runs like *** on 87. 89 is better and I feel improved response at 91 but not like I feel with non ethanol.
You do realize that all standard US fuel is up to 10% ethanol, and 89(or whatever your midgeade is) is just a mix of 87 and 91(or whatever your premium is)
But this was fun to read none the less, so thank you
I've only had the car for 2k miles, but I do notice that I hear the engine a bit more with 87, than I do with 91. I don't necessarily "feel" much of a difference, but I do notice that I can hear the engine "puttering" a lil bit more.
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