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Old 03-19-2011, 07:55 AM
drummerboy40 drummerboy40 is offline
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Default Higher Octane-105!?? ---ANYONE??----

Can I use a higher Octane/Racing fuel in my 98' 4.0 4X4 XLT auto? Or a mixture of it, say, 87/105 octane 50/50? For towing my Boat here in the Rockies?-----------Reprocussians??
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Old 03-19-2011, 08:09 AM
pooleo pooleo is offline
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Default Re: Higher Octane-105!?? ---ANYONE??----

a few guys will tell you that running higher octane on a stock engine will net no improvement. I personally dont think that. Best thing to do is run it and see what it does. I dont think it will "harm" your motor. I run 110 in my harley (manual say 87) and it runs like a raped ape on the torco. Tailpipes with 87 are black, with 110 there are nice and white!
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Old 03-19-2011, 08:33 AM
edgeman4.0 edgeman4.0 is offline
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Default Re: Higher Octane-105!?? ---ANYONE??----

start out with a 87/105 70/30 ratio.. if that works out well, step it up to 60/40. i wouldnt go any higher than that though. idk if it'll make that much of a difference though.
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Old 03-19-2011, 11:55 AM
01_ranger_4x4 01_ranger_4x4 is offline
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Default Re: Higher Octane-105!?? ---ANYONE??----

racing fuel almost always contains lead. the torco 110 that pooleo referenced is a leaded racing gas and that is the reason the tailpipes on his Harley where white or grey, it was from the lead not the higher octane or because it burned any cleaner. running 105+ octane gas wont hurt your truck (it also wont benefit from it either) but the lead in it will hurt it. the emissions systems and sensors in the newer vehicles will be destroyed by running leaded gas. its ok to run in motorcycles, quads and race cars and stuff that have no emissions controls or sensors that come in contact with the fuel or the exhaust. also, unless your truck is tuned to take advantage of the higher octane you will be doing nothing to help your engine by running anything but 87, dont waste your money.
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Old 03-21-2011, 03:05 AM
drummerboy40 drummerboy40 is offline
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Default Re: Higher Octane-105!?? ---ANYONE??----

Thanks for the info, WELL said, detailed and right to the point w/o alot of jibberish, (like some posts) It was just one of those ideas I had in mind, Yezz, I think I will bay her and stay on the 87...Thanks, Dan
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Old 03-21-2011, 04:37 AM
pooleo pooleo is offline
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Default Re: Higher Octane-105!?? ---ANYONE??----

oh emissions, I remember in my '67 it REQUIRED leaded gas! lol Id have to buy lead additive. Until I rebuilt the motor then put in steal valve seats in the heads. I guess the lead acts as a cushion so the valves would not suck thru the head. This may be completely wrong, but that was my understanding of it.
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Quote:
A Gladiator does not fear death. He embraces it. Caresses it. Fucks it. Each time he enters the arena, he slips his c0ck in the mouth of the beast, and prays to thrust home before the jaws snap shut. - Oenomaus
Ball Joints/Upper A-Arms How To
Replace Door pin/bushing
Repair broken dome light tabs
VIDEO OHC Install
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Old 03-21-2011, 06:57 AM
crowdpleazer crowdpleazer is offline
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Default Re: Higher Octane-105!?? ---ANYONE??----

if you need more power towing, try one of the computer tuners.
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Old 03-21-2011, 07:18 AM
dixie_boysles dixie_boysles is offline
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Default Re: Higher Octane-105!?? ---ANYONE??----

Our trucks are tuned for 87. anything higher will more than likely hurt the motor
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Old 03-21-2011, 09:21 AM
zx6rrdan zx6rrdan is offline
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Default Re: Higher Octane-105!?? ---ANYONE??----

Be careful if you get actual racing fuel... lead as mentioned as well it's very volitile and hard on seals and anything rubber. Lots of people use it in bike racing and they drain it out and flush the bike with normal gas end of day because you don't want it sitting in the bike. There's a reason it's sold in a metal can not plastic

Smells great especially when burned and makes a big power difference as well with the right tuning.

Interesting thing that people don't always know... high octance gas does not equal race gas. Actual race gas is often low octane... Best gas on the market making the most power VP Racing Fuels MR12 http://www.vpracingfuels.com/page469685.html is 87 octane. Would be great fun to play with it in a truck but don't think I'll be risking the truck and paying $30-$40 a gallon
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Old 03-21-2011, 10:25 AM
DiabloBlanco DiabloBlanco is offline
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Default Re: Higher Octane-105!?? ---ANYONE??----

Run av gas
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  #11  
Old 03-21-2011, 11:35 AM
Badmotorfinger1 Badmotorfinger1 is offline
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Default Re: Higher Octane-105!?? ---ANYONE??----

No need to run a higher octane in Arvada. Being a mile above sea level makes 87 octane perform similar to 90+ octane a sea level.

Unless your engine is knocking or pinging under load, you're wasting your $$$.
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Old 03-22-2011, 10:55 AM
TerrenceStuart TerrenceStuart is offline
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Default Re: Higher Octane-105!?? ---ANYONE??----

105+ Octane? you have a ford ranger Not a dragster.
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Old 03-22-2011, 11:20 AM
misterb-fx4 misterb-fx4 is offline
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Default Re: Higher Octane-105!?? ---ANYONE??----

Quote:
Originally Posted by machine090767 View Post
105+ Octane? you have a ford ranger Not a dragster.
well said lol
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