You've all made my point.... if you don't need higher octane then why use it? The compression ratio on my bike requires the use of 92 octane or higher, it knocks when lower is used, so I NEED to use the higher octane. The car dosen't knock on lower octane, it dosen't damage anything to run lower octane, and therefore why spend the extra money?

edit for sp.

 

bro did you read this part?

 

That's why we have knock sensors.

 

My post wasn't meant to say everyone must use higher octane, it was meant to address your ASSertion that it isn't 'better' than lower octane - which I interpret as meaning there isn't a difference. There is certainly a difference and while you may run OK with something lower in your car, that may not be the case for the rest of us.

By the way, the octane ratings at the pump are averages of batch tests so you can't always be sure you're getting 87 at the minimum. It's probably more like a bell-curve whose peak is the 87 octane. Therefore, it may very well be that 50% of the time you're on the low side of the 87 rating. Yep, yet another reason to use higher octane. If the manual says 89 minimum, using 91 instead of 89 moves the curve to the right and helps reduce the chances you'll actually get below an 89. Let's face it, the pump isn't exactly controlled like laboratory conditions.

Consider yourself lucky the car hasn't quit on you after neglecting maintenance the way you have.

 

 

fact is the newer cars will run on unleaded regardless of octane rating even the older cars will pre 90s but now comes the main question?? is it power you want or cheap MPG?? well guess what higher octane gives you more MPG and power if you wish but boot it and it costs you because the engine loves high octane as we all know so it depends on how you drive, cheap train in most cases gives you less miles per gallon and that's a fact, but what would you buy 99 P per litre or 82 P per litre ( UK prices )

 

u guys have no life

 

Who cares... It is not my car you drive, it is not my money you spend. Put what kind of gas you like. Put 93 or 87 or put water does not make any different for me.
I can give you advice but cannot force you to do it, so do what you believe is right. There is no point to argue about it.

 

You guys are all crazy... Since diesel is 2 cents cheaper here in FL, I run that in my car...
you should try it nvr2loud. You save money and the car runs fantastic!