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Old Aug 19, 2007 | 03:34 PM
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Exclamation Fuel Additive

Does a person always have to use a fuel additive? If so, how much and how often? Whats a good kind to use? Or should I just use an additive in winter?
 
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Old Aug 19, 2007 | 03:55 PM
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No you don't HAVE to, but it's a good idea. Howe's, Power Service (Diesel Kleen), Stanadyne, Motorcraft are all good and beneficial.
 
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Old Aug 19, 2007 | 09:33 PM
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Ditto....

A quality "diesel only" additive provides for lubrication, cetane boost and moisture reducer (allows for better seperation by the filter).

The names listed above are all good choices.

I personally use PowerService due to availability and price... and have used Howes for the same reason, but not as often.

Good luck,
 
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Old Aug 20, 2007 | 01:49 PM
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The question about how much is a good one. Can anybody help with that as far as how much per gallon of fuel. I just bought some Power Service, but not sure if I'm overdoing it. Guess the first time is okay to use a double dose.
 
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Old Aug 20, 2007 | 02:10 PM
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Originally Posted by jopatk
The question about how much is a good one. Can anybody help with that as far as how much per gallon of fuel. I just bought some Power Service, but not sure if I'm overdoing it. Guess the first time is okay to use a double dose.
I called Powerservice about 2 years ago and they stated that what they reccomend on the bottle is good and double-dosing is fine for greater benefits... but more than double-dosing costs the user more in money than the additional benefits provided.

I double dose (every tank) and have done so for 100,000 miles.

Overkill... maybe... but with 103,000 problem-free miles on the ODO.... I will continue to do so since I plan on driving my truck for 300,000+ or more miles.
 
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Old Aug 20, 2007 | 02:25 PM
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Question

As far as Power Service DIESEL KLEEN, Should I use the stuff in the white bottle or the silver bottle on a regular basis?

And what is cetane (Is it simular to octane) Do I want a cetane boost, because some of the additives say you can raise your boost by "X" amount.
 
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Old Aug 20, 2007 | 02:54 PM
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Cetane is kind of the opposite of Octane. Octane is the measure of the resistance to autoignition, Cetane tells how easy it is to autoignite. The higher the cetane rating in a diesel fuel, the easier it is on your engine.

As far as how much to add, any is better than none. More than a double dose is overkill and doesn't really help you any. I usually just dump about half a small bottle of Powerservice in at each fill up and call it good. I don't worry about taking specific measurements.
 
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Old Aug 20, 2007 | 11:21 PM
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Originally Posted by tow2atm
As far as Power Service DIESEL KLEEN, Should I use the stuff in the white bottle or the silver bottle on a regular basis?

And what is cetane (Is it simular to octane) Do I want a cetane boost, because some of the additives say you can raise your boost by "X" amount.
The difference between the white and silver is the white has an antigelling agent for cold weather. Cetane levels will not hurt your engine. Granted filling your tank with it might. There is a direct relationship between a diesel fuel's cetane number and its ignition point. Delayed ignition is a primary cause of increased emissions and inferior engine performance. The lower the cetane number, the longer the ignition delay. Fuels with high cetane numbers burn more quickly and more completely, resulting in smoother running engines with less power lag, lower emissions and easier engine starting. I buy the 16oz bottle and use the whole thing. I alternate it ever other tank fill. It says it will decrease fuel consumption by 8%. I honestly might get 1/2 to 1 mpg better. There will be a little sweet smell to your exhaust. Walmarts around me only have the 32oz and larger bottles so I hit the auto stores. Its about 5.99 a bottle. I havent done the math but I figure it does an engine good.
 
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Old Aug 21, 2007 | 08:24 AM
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Originally Posted by SURBAN
I alternate it ever other tank fill. It says it will decrease fuel consumption by 8%. I honestly might get 1/2 to 1 mpg better. There will be a little sweet smell to your exhaust.
What are you alternating... which bottle you use (white or grey), or using at all in every other fill-up?

I would use in every tank for the lubrication properties.
 
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Old Aug 22, 2007 | 10:54 AM
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you can buy the big bottle of PowerService at Wal Mart for less than 20 bucks, and it will last you a long time (at least a couple thousand miles)
 
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Old Aug 22, 2007 | 11:37 AM
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Try hitting truck stops. They usually sell the larger bottles (Power Service, especially) for cheaper than what the discount stores offer.
 
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Old Aug 22, 2007 | 01:28 PM
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Originally Posted by tow2atm
As far as Power Service DIESEL KLEEN, Should I use the stuff in the white bottle or the silver bottle on a regular basis?
You can use either the white or grey bottle year round. The white bottle has anti-gel (good for Wisconsin winters) and the grey does not. I think the grey also boosts the cetane numbers a couple digits more and may have a stronger injector cleaning package.

I have used the white bottle year round at each fill up (standard dose) for the past 85,000 miles and it runs great.
 
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Old Aug 22, 2007 | 01:41 PM
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i just picked some stuff up today, i can't remember what it is called right now but it says 1 oz. will treat 70 liters of fuel, so i have to use about 1.5 oz of it per fillup
 
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Old Aug 22, 2007 | 02:38 PM
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Grey Diesel Clean is .65 ounce per gal. for double dose. Motorcraft is 4 oz. per 25 gal single dose.
 
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Old Aug 22, 2007 | 09:28 PM
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As a counterpoint, we go 160,000 miles per year and never touch the stuff.
 
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