Just wondering what the prevailing wisdom is on running higher octane
fuel and/or synthetic oil in a vehicle that sees off road use, if it
isn't really required by the manufacturer's specs. Is it worth the
extra $$$? Does this help in some way to offset the extra wear and
tear we put on these vehicles, or is it a waste of money?

(Please respond or I will be forced to retitle this message "Premium
Petroleum = Junk!" to elicit more comments. <g>)

 

Premium gas is a waste of money in an engine that does not require it. Save
your money and get a better winch. ;-)




"Joshua Nelson" <spam_box@ev1.net> wrote in message
news:b102b6e4.0309041313.3539f82d@posting.google.c om...
> Just wondering what the prevailing wisdom is on running higher octane
> fuel and/or synthetic oil in a vehicle that sees off road use, if it
> isn't really required by the manufacturer's specs. Is it worth the
> extra $$$? Does this help in some way to offset the extra wear and
> tear we put on these vehicles, or is it a waste of money?
>
> (Please respond or I will be forced to retitle this message "Premium
> Petroleum = Junk!" to elicit more comments. <g>)

 

Premium gas is a waste of money in an engine that does not require it. Save
your money and get a better winch. ;-)




"Joshua Nelson" <spam_box@ev1.net> wrote in message
news:b102b6e4.0309041313.3539f82d@posting.google.c om...
> Just wondering what the prevailing wisdom is on running higher octane
> fuel and/or synthetic oil in a vehicle that sees off road use, if it
> isn't really required by the manufacturer's specs. Is it worth the
> extra $$$? Does this help in some way to offset the extra wear and
> tear we put on these vehicles, or is it a waste of money?
>
> (Please respond or I will be forced to retitle this message "Premium
> Petroleum = Junk!" to elicit more comments. <g>)

 

One my 86 CJ7 with the 258 carb engine set up manually I have more than
a 100 miles per tank difference between 87 and 91 octane and a serious
high speed power difference.

On my 88 Cherokee 4.0 engine, no difference.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Joshua Nelson wrote:
>
> Just wondering what the prevailing wisdom is on running higher octane
> fuel and/or synthetic oil in a vehicle that sees off road use, if it
> isn't really required by the manufacturer's specs. Is it worth the
> extra $$$? Does this help in some way to offset the extra wear and
> tear we put on these vehicles, or is it a waste of money?
>
> (Please respond or I will be forced to retitle this message "Premium
> Petroleum = Junk!" to elicit more comments. <g>)

 

One my 86 CJ7 with the 258 carb engine set up manually I have more than
a 100 miles per tank difference between 87 and 91 octane and a serious
high speed power difference.

On my 88 Cherokee 4.0 engine, no difference.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Joshua Nelson wrote:
>
> Just wondering what the prevailing wisdom is on running higher octane
> fuel and/or synthetic oil in a vehicle that sees off road use, if it
> isn't really required by the manufacturer's specs. Is it worth the
> extra $$$? Does this help in some way to offset the extra wear and
> tear we put on these vehicles, or is it a waste of money?
>
> (Please respond or I will be forced to retitle this message "Premium
> Petroleum = Junk!" to elicit more comments. <g>)

 

Approximately 9/4/03 14:13, Joshua Nelson uttered for posterity:

> Just wondering what the prevailing wisdom is on running higher octane
> fuel and/or synthetic oil in a vehicle that sees off road use, if it
> isn't really required by the manufacturer's specs. Is it worth the
> extra $$$? Does this help in some way to offset the extra wear and
> tear we put on these vehicles, or is it a waste of money?

If your engine does not have a knock sensor, a higher octane has
no effect on horsepower or mileage that cannot be accounted for
as well by simple brand to brand or batch to batch variations.
Disclaimer that anecdotal reports of superior cleaning abilities
of higher octane exist from credible sources. Note that this
applies if your engine does not ping on the cheaper octane, with
a suggestion that if it does ping slightly on the highway under
load, stepping up a grade to inhibit this under heavy climbing
is extremely cheap insurance.

If you are driving heavy off road, you need to change oil more
often, particularly in the desert, whether synth or dino. However
anecdotal reports of better mileage from credible sources exist
that a synth or synth blend does help with same.

Or you could retitle the posting "Yet another boring repeat of
the same old thread... "

 

Approximately 9/4/03 14:13, Joshua Nelson uttered for posterity:

> Just wondering what the prevailing wisdom is on running higher octane
> fuel and/or synthetic oil in a vehicle that sees off road use, if it
> isn't really required by the manufacturer's specs. Is it worth the
> extra $$$? Does this help in some way to offset the extra wear and
> tear we put on these vehicles, or is it a waste of money?

If your engine does not have a knock sensor, a higher octane has
no effect on horsepower or mileage that cannot be accounted for
as well by simple brand to brand or batch to batch variations.
Disclaimer that anecdotal reports of superior cleaning abilities
of higher octane exist from credible sources. Note that this
applies if your engine does not ping on the cheaper octane, with
a suggestion that if it does ping slightly on the highway under
load, stepping up a grade to inhibit this under heavy climbing
is extremely cheap insurance.

If you are driving heavy off road, you need to change oil more
often, particularly in the desert, whether synth or dino. However
anecdotal reports of better mileage from credible sources exist
that a synth or synth blend does help with same.

Or you could retitle the posting "Yet another boring repeat of
the same old thread... "

 

"Joshua Nelson" <spam_box@ev1.net> wrote in message
news:b102b6e4.0309041313.3539f82d@posting.google.c om...
> Just wondering what the prevailing wisdom is on running higher octane
> fuel and/or synthetic oil in a vehicle that sees off road use

hi joshua,
run 87 octane and dyno oil. the money saved goes a long way in jeep mods
that will make a _real_ difference that you will appreciate every time you
go off road.

--
Nathan W. Collier
http://7SlotGrille.com

 

"Joshua Nelson" <spam_box@ev1.net> wrote in message
news:b102b6e4.0309041313.3539f82d@posting.google.c om...
> Just wondering what the prevailing wisdom is on running higher octane
> fuel and/or synthetic oil in a vehicle that sees off road use

hi joshua,
run 87 octane and dyno oil. the money saved goes a long way in jeep mods
that will make a _real_ difference that you will appreciate every time you
go off road.

--
Nathan W. Collier
http://7SlotGrille.com

 

Approximately 9/4/03 15:45, Mike Romain uttered for posterity:

> Ummmm, Lon,
>
> That should be 'if the engine "has" a knock sensor' shouldn't it?

Lets see.... if, not, no, well no
yes knock sensor not. Or in other words, if your engine DOES
have a knock sensor, it may benefit more from the higher octane
than an engine without one.... IF [which is pretty rare] it was
actually dropping engine performance due to sensed knock.
>
> I 'don't' have a working one and get 100 miles a tank difference between
> 87 and 91 octane.

A knock sensor results in modified ignition and mix... IF there
is knocking, which surprisingly doesn't happen.

I get different mileages per tankful simply by buying gas in
one area versus another. Pretty consistent, and it is the
same brand, just different geographical area.

Besides, I *did* say anecdotes from credible sources.....

Or in other words, "maybe".