Horsepower rating

[PayteKrum]

What is the horsepower rating at 87 or 88 octane? Just curious what it would make on that type of gas, will use premium for racing of course.

 

[D.J.]

oh boy, peoples OPINIONS are about to flood the thread.

 

[n8hegr8]

and the manual says.......................................only use 91 or higher, right? im pretty sure, i could be wrong though.

 

[AtomicGTL]

premium car premium gas

 

[D.J.]

and the manual says.......................................only use 91 or higher, right? im pretty sure, i could be wrong though.

My manual does not say that...

Mine says for max powah - use 91. and using less (87) could result in less POWAH and increased fuel consumption.

 

[Snicklefritz]

yep less than listed horse power and mpg is the price you pay for paying less for gas. that's it. and there are forum testifiers that assert they get better mpg on regular gas and never notice a power difference. my post is the tl;dr version of countless gasoline choices threads.

 

[nhcowboy28]

Be advised that each sticker adds 15hp…

 

[D.J.]

All winter long, I use 87 exclusively.

When my power significantly exceeds my winter tire traction, I see no point paying for more expensive 91 octane fuel.

To each their own.

 

[stoopid]

All winter long, I use 87 exclusively.

When my power significantly exceeds my winter tire traction, I see no point paying for more expensive 91 octane fuel.

To each their own.

That's prudent (assuming Kia did their due diligence and programmed/mapped the ecu fully for 87 octane).

 

[D.J.]

That's prudent (assuming Kia did their due diligence and programmed/mapped the ecu fully for 87 octane).

My 200,000 kms of warranty suggests to me, they did.

 

[Snicklefritz]

That's prudent (assuming Kia did their due diligence and programmed/mapped the ecu fully for 87 octane).

kia did, or else they never would have used the word 'recommended'. I just like the idea of running the fuel grade that doesn't required the engine to adjust to the lower octane.

 

[G70LEbyAdoom]

Probably around 39,360ish Duck power on 87

 

[Kodiack]

 

[DonD]

I simply don't know why people buy a performance car and try to run a lower octane than recommended.

If a bunch of factors stack up against you and you're using regular, I can't see how it's good for the engine. Hot day, heavy curb weight, uphill pass, full throttle for example. Don