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flwhaler posted 11-01-2001 09:32 PM ET (US)   Profile for flwhaler   Send Email to flwhaler  
Sorry jimh not sure if this post should fall under performace or general.
What is everyone's take on fuel: Octane, Brand etc. Chevron uses Techron in there fuels. The same thing as ringfree. Has anyone had experince with this? A high-dry near me switched fuel from chevron to another brand...suddenly yamahas were popping all over the place. Is there merit to this claim?

michael

JBCornwell posted 11-01-2001 10:04 PM ET (US)     Profile for JBCornwell  Send Email to JBCornwell     
Howdy, FLWhaler. This subject gets debated regularly. Here is my position:

Any FRESH, 87 octane, lead and alcohol free gasoline. Preferably free of ANY additives. (back in the 50s, we went extra miles to get Amoco "White" additive-free gasoline.) Mid-Range and Premium gasoline have extra, deposit-creating additives.

Any Premium, TC-W3 rated oil. Quicksilver, Pennzoil, Etc. Wal-Mart "Super Tech" brand is Pennzoil premium for a few bux less.

Red sky at night. . .
JB :)

jimh posted 11-01-2001 11:21 PM ET (US)     Profile for jimh  Send Email to jimh     
What is a "high dry"?
Kim posted 11-02-2001 12:56 AM ET (US)     Profile for Kim  Send Email to Kim     
the higher the octane ;
the slower the burn rate...
kim.
flwhaler posted 11-04-2001 10:52 PM ET (US)     Profile for flwhaler  Send Email to flwhaler     
A dry storage facilty. NOt trying to over simplfy. It is a large building with racks of boats that are brought down by a fork lift and put in the water.

michael

compounder posted 11-05-2001 08:48 AM ET (US)     Profile for compounder  Send Email to compounder     
JB, do you have proof of your statements that premium fuels have "extra, deposit-creating additives" and "Wal-Mart 'Super Tech' brand is Pennzoil premium," or are you just parroting "urban legends?"

Also, I'm not a Wal-Mart shopper, but isn't their oil called "Tech 2000" or something similar?

JBCornwell posted 11-05-2001 10:04 AM ET (US)     Profile for JBCornwell  Send Email to JBCornwell     
Howdy, Compounder. Different refineries use, and different locales require a variety of additives to raise octane. Not all of them interact with lube to increase ash and I can't quote the sources that sent us all in search of additive-free "white" gas 40 or so years ago.

Get a bottle of Wal-Mart "Super Tech" TC-W3 oil and read the fine print. It is very unlikely that Pennzoil makes a lower grade of oil just for Wal-Mart.

Red sky at night. . .
JB :)

bigz posted 11-05-2001 11:23 AM ET (US)     Profile for bigz    
Coleman did :) -- Amoco premium "white" only thing other than packaged Coleman fuel you could get at the pump in bulk! All others contained lead -- used as a lubricant --
Back then in the medieval times --- Gulf for standard gasoline was the best -- interesting reason --- they didn't have the precise cracking capabilities of the others, consequently you would more than likely got close to premium at the pump ( Fed's dictated if you advertised 87 octane the stuff better be 87 octane or higher) --- no Urban Legend a fact in the oil industry ----

Pennzoil/Quaker State one in the same these days I do believe --

Basic gasoline is all refined (cracked) the same -- the mid range and premium individual companies add specific additives to increase octane -- as a general rule none cause any build up or additional deposits quite the contrary usually reduce them -- bottom line any well filtered at the pump 87 octane should work fine --- I said well filtered which occasionally comes into the way discount for that matter branded service stations handle their pumps --- on occasion when the storage tanks get near empty at the terminals the gas contains a considerable amount of water -- if not eliminated at the pump an auto can usually handle it but not always ---- an outboard forget it unless you have installed a water separating filter -- as mentioned numerous times on this forum the filter on the outboard is only good for particles of sediment --- Z

dgp posted 11-05-2001 11:29 AM ET (US)     Profile for dgp  Send Email to dgp     
JB, I thought the marine white gas of the '60s was a lead-free fuel, not to be confused with the white gas used in camping stoves which is actually a naphtha.
Also the regionally blended "cocktail" gasolines have additives to reduce emmissions not increase octane.
Chap posted 11-05-2001 11:31 AM ET (US)     Profile for Chap  Send Email to Chap     
www.saltwatersportsman.com/boating/understanding_oil.html

This may be informative here.
Chap

WantaWhale posted 11-05-2001 12:05 PM ET (US)     Profile for WantaWhale  Send Email to WantaWhale     
My omc manual specifically recommmends you use a premium grade gas if only TC-WII
is avaible. It goes on to say that most premium grades *have* ingredients added that will remove and prevent carbon buildup on pistons and rings. These ingredients can extend engine life......
bigz posted 11-05-2001 01:13 PM ET (US)     Profile for bigz    
Don the Amoco "white" was and still can be used in Coleman products ( though with unleaded available why pay the premium these days) , it is a lead free fuel as I stated -- lot less expensive than the Coleman per gallon fuel.

Coleman fuel is basically a gasoline -- all naphtha is anyway is a product distilled from petroleum which is some what heavier than light gasoline and less than benzine. Coleman claims they add certain additives for cleaner burning probably true. However over almost a 1/2 century of using "white" gas in my Coleman stuff I have yet to see any significant improvement when the Coleman brand was used instead of white gas.
The key was the Amoco had no lead and of course Coleman now has products they claim can use unleaded gas and as far as I can tell their is no difference in their old product and the new product --- have a camp stove from 1968 it burns reg. unleaded fine --- I believe all was just a marketing ploy --- to sell their own fuel!

Don I do stand corrected on the point of octane the way I used the term additives --- actually it is refiners blending various refined petroleum products with the reg gas to obtain higher ratings -- the regional differences as you indicate are just a marketing ploy --

I must add the actual differences from one brand of gas to another can be significant based on the "base" additive package used in all of that brands gasoline octane level products --- this is not the same as the "regional" additive packages which might be added for say climatic conditions ---

JFM posted 11-05-2001 01:35 PM ET (US)     Profile for JFM  Send Email to JFM     
I used to have a 1965 GTO 389 V8 with 3, 2 barrel carbs until 1995. Being a true muscle car we always used Sunoco 260 with a can of octane booster per tank. The old engines needed lead and Sunoco was the last in my area to drop lead. I have heard that the best gas you can buy is Shell because it has no mixture of any type to the pure refined gasoline,ei. 10% methenol or others. In Ohio the law states that if it's not pure gas they most post it on the pump. I have never had any problems with Shell in an outboard or inboard engine. Regards, Jay

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