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Okay, so the dealer and the manual recommend using at least 91 octane in our Sky. Though it said 87 may be used -- it can create engine knocking.

After scouring the Sol's forums there is a pretty convincing argument that it is a very small if even noticeable difference in performance by switching to the lower octane.

I however, put in the 94 octane today as my first fill up and I immediately noticed a smoother drive (I could also be overanalyzing it and made it up in my head).

**Summarizing perhaps the best point from some of the Sol threads however is that using Premium gas albeit expensive, is only about 20 cents more per gallon which comes out to about 100 bucks a year if you drive between 10-15k a year -- so why not give it what it craves? I know I will be.

Has anyone TRIED the lower octanes? Done the 87 vs 91 challenge? Let me know how it turned out.
 

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Great info for us still waiting. Cant wait to hear from others who already have theirs.
 

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1994SC2 said:
Okay, so the dealer and the manual recommend using at least 91 octane in our Sky. Though it said 87 may be used -- it can create engine knocking.

After scouring the Sol's forums there is a pretty convincing argument that it is a very small if even noticeable difference in performance by switching to the lower octane.

I however, put in the 94 octane today as my first fill up and I immediately noticed a smoother drive (I could also be overanalyzing it and made it up in my head).

**Summarizing perhaps the best point from some of the Sol threads however is that using Premium gas albeit expensive, is only about 20 cents more per gallon which comes out to about 100 bucks a year if you drive between 10-15k a year -- so why not give it what it craves? I know I will be.

Has anyone TRIED the lower octanes? Done the 87 vs 91 challenge? Let me know how it turned out.

I really feel that any car considered a "sports" model benefits from higher octane gas. I for one won't be at 7 Eleven pumping regular into my Sky.....lol...........:cool: (just my opinion)
 

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SkyRaider said:
I really feel that any car considered a "sports" model benefits from higher octane gas. I for one won't be at 7 Eleven pumping regular into my Sky.....lol...........:cool: (just my opinion)
SkyRaider, do you know what your deliver charge will be? Here it is around $575. Wonder what they will charge you :confused:
 

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1994SC2 said:
Okay, so the dealer and the manual recommend using at least 91 octane in our Sky. Though it said 87 may be used -- it can create engine knocking.

After scouring the Sol's forums there is a pretty convincing argument that it is a very small if even noticeable difference in performance by switching to the lower octane.

I however, put in the 94 octane today as my first fill up and I immediately noticed a smoother drive (I could also be overanalyzing it and made it up in my head).

**Summarizing perhaps the best point from some of the Sol threads however is that using Premium gas albeit expensive, is only about 20 cents more per gallon which comes out to about 100 bucks a year if you drive between 10-15k a year -- so why not give it what it craves? I know I will be.

Has anyone TRIED the lower octanes? Done the 87 vs 91 challenge? Let me know how it turned out.
I am still on my dealer's tank and I am sure they put 87 in it when I bought it. I have not heard any knocking, but I am also interested to see other's thoughts.:confused:
 

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agirltrucker said:
SkyRaider, do you know what your deliver charge will be? Here it is around $575. Wonder what they will charge you :confused:
Delivery charges are suppose to be the same anywhere in the country, including Hawaii and Alaska. THey average it out, so that even in the city of manufacture they have the same charge. Or at least, that is what I have been told. :rolleyes:
 

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agirltrucker said:
SkyRaider, do you know what your deliver charge will be? Here it is around $575. Wonder what they will charge you :confused:
good question, but it's the same.....$575............even for us folks here in Alaska!......:cool:
 

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1994SC2 said:
Okay, so the dealer and the manual recommend using at least 91 octane in our Sky. Though it said 87 may be used -- it can create engine knocking.

After scouring the Sol's forums there is a pretty convincing argument that it is a very small if even noticeable difference in performance by switching to the lower octane.

I however, put in the 94 octane today as my first fill up and I immediately noticed a smoother drive (I could also be overanalyzing it and made it up in my head).

**Summarizing perhaps the best point from some of the Sol threads however is that using Premium gas albeit expensive, is only about 20 cents more per gallon which comes out to about 100 bucks a year if you drive between 10-15k a year -- so why not give it what it craves? I know I will be.

Has anyone TRIED the lower octanes? Done the 87 vs 91 challenge? Let me know how it turned out.

my thinking is if we can afford the car we can afford the higer octane gas for it. :driving:
 

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Only PREMIUM in my SKY, just like only premium in my BMW motorcycle. Vehicles that recommend premium run worse with lower octane, yet vehicles that recommend lower octane rarely benifit from premium fuel.

You guys are a trip...spend $1000's more for a better radio & bling bling wheels but don't want to shuck out a little more for higher octane. Go figure.
 

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Discussion Starter #10
Sunny Ragtop said:
Only PREMIUM in my SKY, just like only premium in my BMW motorcycle. Vehicles that recommend premium run worse with lower octane, yet vehicles that recommend lower octane rarely benifit from premium fuel.

You guys are a trip...spend $1000's more for a better radio & bling bling wheels but don't want to shuck out a little more for higher octane. Go figure.
So far I think were all on your side Sunny -- I was just seeing who may be talking a walk on the wild side, er... TJ Maxx side or whatever it would be.
 

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Use Premium, you are paying less than $2.50 a tank full for the difference in octane... even if you bought regular and used an octane booter for 5 bucks a bottle you still wouldn't get it up to 93 octane... Just read the labels on some of those octane boosters, not worth the money... Just buy Premium... your Sky will thank you for it...
so far I am averaging 27.6 MPG in 2000 miles of driving.
 

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SkyMan 07 said:
Use Premium, you are paying less than $2.50 a tank full for the difference in octane... even if you bought regular and used an octane booter for 5 bucks a bottle you still wouldn't get it up to 93 octane... Just read the labels on some of those octane boosters, not worth the money... Just buy Premium... tiyr Sky will thank you for it...
so far I am averaging 27.6 MPG in 2000 miles of driving.
Lil Sunni needs High Octane -- LIL Sunni gets it.:cheers:
I find if you give a woman what she wants things just go sooooooooo much nicer...:thumbs:
 

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1994SC2 said:
Okay, so the dealer and the manual recommend using at least 91 octane in our Sky. Though it said 87 may be used -- it can create engine knocking.
Performance cars often utilize a higher compression ratio (usually above 9.0) to improve volumetric efficiency. The compression ratio, cam timing, ignition timing, and fuel type all influence engine power. High compression and advanced ignition timing makes the most power (for a given engine displacement and cam timing) but requires the highest octane fuel. If lower octane fuel is used, the ignition timing must be retarded to keep engine knock from occuring during times of high engine output (climbing hills, accelerating, etc.). Most modern cars with electronic engine managment have an engine knock sensor. When an engine knock is sensed the ignition timing is retarded to eliminate the knock. Retarding the ignition timing causes a reduction in performance. So even if you don't hear an engine knock your performance while accelerating is most likely being degraded by using the low octane fuel. However if all you are doing is low engine load driving then you probably won't see any appreciable difference. Hope this helps :D
 

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TexSon said:
Delivery charges are suppose to be the same anywhere in the country, including Hawaii and Alaska. THey average it out, so that even in the city of manufacture they have the same charge. Or at least, that is what I have been told. :rolleyes:
Well thats a real good deal, thx :thumbs:
 

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SkyRaider said:
good question, but it's the same.....$575............even for us folks here in Alaska!......:cool:
Man great deal for us all then..... :D
 

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:yesnod:
Rick Tinley Park said:
Lil Sunni needs High Octane -- LIL Sunni gets it.:cheers:
I find if you give a woman what she wants things just go sooooooooo much nicer...:thumbs:
Woo Hooo a man after my own heart :yesnod:
 

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Some cars don't like high octane. They told me not to use premium on my Taurus 24 valve DOHC. Okay, no comparison, but why come?
 

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skywulf said:
Some cars don't like high octane. They told me not to use premium on my Taurus 24 valve DOHC. Okay, no comparison, but why come?
Higher octane fuels retard the detenation of the fuel. This is needed in high CR engines or boosted engines as well because the gas gets compressed to a much higher rate at a much higher rate and you don't want it exploding too soon (knock). Using high octane fuel in some low octane designed cars can cause the fuel to explode later then it's supposed to.
 
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