posted 07-13-2004 11:10 AM                  

quote:

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Originally posted by Gary Archer:
NOT it was 110 octane!

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posted 07-13-2004 11:38 AM                  

quote:

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Originally posted by DR PROWLER:
It's like a very inexpensive supercharger...

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posted 07-13-2004 12:18 PM                  

Theoretically, if you run 87 and your engine doesn't knock, you're OK? .....but I wouldn't recommend it for any reason. On the other side, putting 93 octane in a car that requires 87 is a waste of money.

Our octanes run 89, 91 and 93 I think around here. (or is it 87, 89, and 91?)

posted 07-13-2004 12:43 PM                  

Better mileage seems to depend more on engine temps...an engine running on a 180 degree thermostat will get better mileage than with a 160 thermostat. But the 160 thermostat will produce more power.

posted 07-13-2004 01:53 PM                  

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posted 07-14-2004 01:43 AM                  

quote:

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Originally posted by CTProwler:
I use whatever the highest is available at the time. Its such a small tank its not expensive to fill-up anyways.

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posted 07-15-2004 09:12 AM                  

My advice would be to run whatever octane fuel that makes you comfortable. There are valid arguments to made for lower octane (runs good, cheaper) and higher octane (not much more, preceived better quality). Each owner has to make that decision individually.

IN MY OPINION, 87 octane is all that is needed for the Prowler engine to perform OK in usual diving conditions other than racing or if you have significant engine modifications. When it comes down to it the engine is the 3.5L that Chrysler put in other production cars. You Viper owners probably do need 93.

Why is higher octanes pushed so hard. Marketing. Again, in MY PERSONAL opinion it's because the refiners, suppliers, distributors, retailers (all in the distribution chain) simply make more money on the higher octanes than they do on base unleaded! 87 octane is often sold at or near cost, with the hopes of making money on higher octanes and on the Twinkies, etc. sold in the store.

What do I do? I filled my Tahoe up yesterday with 87 octane, I filled my wife's Mercedes SUV up this morning with 93 octane simply because it is going in for the emissions test today (typically 1 tank 93, next tank 87)and hers does seem to not run as good in summer months on lower octane (possibly due to lower vapor pressure in summer gas). I fill my Prowler up most of the time at one of our BP stations near our home and I usually get 93. I usually do this even though it runs fine on 87 for two selfish reasons.
#1. I'm in the biz and I run personal fuel usage through the company. A cobbler doesn't pay for his own shoe repairs, a mason for his own brick work.
#2. My neighbors see me pumping 87, they just might start doing the same and I need the extra cash of premium sales to support my Prowler addiction!

Just my opinion and I'm being as honest and stand-up as I can be.