Gas. 87, 91, 93 Octane?

[davebo]

Basically if you want more performance out of the Stinger just get the LAP3 tuners and always run Premium?

 

[SMaRTy]

in our region we don't have 87 nor 93 .. just 91, 95 and 98 oct.

i use 95.

 

[bugaboo90]

Just filled up my gt2 for the first time. I did 93 but WOW that is expensive. I think I will back down to 91 or maybe 87 but likely just stick to the midgrade.

I am surprised as to how small the gas tank is knowing the mpg is so low.

 

[Mike_TX]

in our region we don't have 87 nor 93 .. just 91, 95 and 98 oct.

i use 95.

Those are RON ratings (Research Octane) vs. the R+M/2 (or the average of the Research and Motor Octane ratings) we use in the U. S. and Canada. Our R+M/2 (also known as AKI) numbers are lower than RON numbers for the same "octane" level of gas.

 

[Cazwizzle]

Yep, I filled my last tank with 87 just to try it out. I noticed the difference in responsiveness and overall thrust. Not putting 87 anymore.

Same experience with butt dyno when running 87 vs 93, very noticeable at WOT

 

[Cazwizzle]

Just filled up my gt2 for the first time. I did 93 but WOW that is expensive. I think I will back down to 91 or maybe 87 but likely just stick to the midgrade.

I am surprised as to how small the gas tank is knowing the mpg is so low.

Same, was thinking a 400-mile range would be more fitting. I've been getting ~320 miles/tank.

 

[Kia Stinger]

Same, was thinking a 400-mile range would be more fitting. I've been getting ~320 miles/tank.

Fuel efficiency should improve as the engine breaks-in...

 

[FadedLine]

Interesting. I’ve only used 87 so far but switching to 93 next fill up. Curious if I’ll notice a difference.

 

[CDv6]

Interesting. I’ve only used 87 so far but switching to 93 next fill up. Curious if I’ll notice a difference.

Please report back with your findings.

 

[bugaboo90]

I've decided to go to 87. Everything seems fine. I get plenty of acceleration and no hiccups. So not sure why I would pay more.

 

[bugaboo90]

I've been trying to find the page where it says this, but I can't find. Can you tell me what page this spec is on.. thx

Premium is recommended. But the manual says to run 87 or higher. Haven’t tried 87

 

[CDv6]

I've been trying to find the page where it says this, but I can't find. Can you tell me what page this spec is on.. thx

The official documentation is very ambiguous. I believe it's only the website that says premium is recommended. The manual goes into technical detail on fuel quality and blend restrictions, but not octane requirements. The word 'premium' occurs once in the 560 page US manual, and it's related to a fuse.

Edit: The word 'octane' occurs once as well (p1-2)...

FUEL REQUIREMENTS
Your new vehicle is designed to use only unleaded fuel having a pump octane number ((R+M)/2) of 87 (Research Octane Number 91) or higher. (Do not use methanol blend- ed fuels.)

 

[Chris]

I've been trying to find the page where it says this, but I can't find. Can you tell me what page this spec is on.. thx

Very first page after the table of contents.

 

[DaJackson]

The official documentation is very ambiguous. I believe it's only the website that says premium is recommended. The manual goes into technical detail on fuel quality and blend restrictions, but not octane requirements. The word 'premium' occurs once in the 560 page US manual, and it's related to a fuse.

That’s because premium is a marketing term that can mean different things.

The technical information they would use is the Octane number you quoted.

Looks like it recommends 91 or above which is normal for most higher performance turbo cars.

 

[CDv6]

That’s because premium is a marketing term that can mean different things.
The technical information they would use is the Octane number you quoted.
Looks like it recommends 91 or above which is normal for most higher performance turbo cars.

Agreed on the "premium" terminology. The US uses the AKI standard, however, not RON, so 87 is the correct minimum octane number to reference from that entry in the manual.

Octane rating - Wikipedia​

 

[Todd Piefer]

My Stinger GT manual says to use 87 octane or higher "Top Tier" fuel.

 

[davebo]

Yes whether you decide to use 87, 91 or 93, definitely stick with top tier gas.
Licensed Brands | Top Tier Gas
Going with Bob's Discount Gas once in a while won't kill the car, but you don't want to do that consistently. Although next time you're there, go in and as Bob who supplies his gas, because some of those independent stations just pay for Shell or BP to fill up their tanks and it's the same Top Tier gas just a little cheaper.

 

[bugaboo90]

Thank you. I looked everywhere but the first few pages, thinking it was silly stuff.. thx

Very first page after the table of contents.
View attachment 3252

 

[Marc Collins]

All modern cars will adjust timing to prevent engine damage as you switch from one octane to another.

The question that is important to get a confirmed answer is whether the power and torque ratings of the car are valid with 87 octane gas. If so, great and you will get a nice boost if you use higher octane. If the car is "recommended" to use premium/91 or higher octane just to achieve the advertised power numbers, then that is a different story. Most European turbos require premium to get the advertised numbers.

 

[bugaboo90]

Based on minimum required, I changed to 87 octane. I really haven't noticed any difference in power, I hit the gas and I am at 100 before I know it.. good enough for me

All modern cars will adjust timing to prevent engine damage as you switch from one octane to another.

The question that is important to get a confirmed answer is whether the power and torque ratings of the car are valid with 87 octane gas. If so, great and you will get a nice boost if you use higher octane. If the car is "recommended" to use premium/91 or higher octane just to achieve the advertised power numbers, then that is a different story. Most European turbos require premium to get the advertised numbers.