Oil in Gas (Don’s Cocktail)

[carolinagreenhead]

How many of you Run Don’s recommended cocktail of putting oil in your gas? I was told by a Mercury tech at the Forrest Wood Cup that these newer motors get all of the oil they need and not to do it again. For a 2015 Mercury Pro XS

[Bassin Bob71]

I don't do it with mine.... The Merc manual doesn't call for it so I don't do it. I respect Don without a doubt but under warranty, I'm going to follow the manual. I do run the fuel additives however.

[OH_Ranger]

I do. Started 2 years ago.

[Rip Bass]

I do it in my 2011 Opti 200

[Chautauquanuy]

I do. Started 2 years ago.

Me too

[schinkr1]

I do it. Other than cost, don't see a downside. I heard two reasons that made sense to me...the first was to lubricate the internal fuel delivery components and the second had to do with the tune they put on these motors to meet EPA requirements. Something about a couple of the cylinders getting less oil and burning up.

[Z518 Comanche]

Me too

[gonnabe]

I always add the oil to the fuel it's a very minimum amount. The main purpose is to lubricate the injectors because of the alchohol in the gas. The alcohol dries out the injectors.

[SoonerFan]

I do it. I don't know much about the science of these motors but Don's explanation seemed to make sense to me.

[carolinagreenhead]

It makes sense to do it and I highly respect Don. It also makes sense not to do it. Who’s right?

[Michael49]

Although I can't find it on the Mercury 3 liter forum any longer, I thought "Dons Cocktail" was 1 oz Quickleen + 1 oz Quickcare for every 5 gallons of fuel.
Where does the "cocktail" include oil also ?

[06 SB]

I add Premium Plus to fuel. I trust Don completely. He is the trusted expert!

[carolinagreenhead]

Although I can't find it on the Mercury 3 liter forum any longer, I thought "Dons Cocktail" was 1 oz Quickleen + 1 oz Quickcare for every 5 gallons of fuel.
Where does the "cocktail" include oil also ?

Mom not seeing it either.

[gonnabe]

Mercury marine is not going to advertise or put in the manual what the recommended mix is to used lubricate the injectors. Because of the EPA star rating on the optimax engines the EPA does not want oil mixing with the fuel and then burning in the combustion chamber.

[RngrBill]

Thread: Oil, Battery, Spark Plugs, Fuel and Fuel Additive Recommendations Updated 8/26/15

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"Mercury Component Cocktail"- for EVERY tank of fuel, whether or not your fuel contains Ethanol: (Chemically, this works much the same as the previously recommended (and now to avoid alcohol content) cocktail, and requires less components.) This is Don's Preferred "Cocktail":

-1oz Mercury QuickCare +
-1oz Mercury QuickLeen
----------------------------
Per 5 Gallons of Fuel (in EVERY TANK).

In addition to the above, it is acceptable to add 150:1 mix of Premium PLUS in the fuel tank (for OPTIMAX engine models). This has been proven to benefit fuel system components by providing additional lubrication ONLY to the fuel system components (especially the direct injectors- which are often left DRY after engine shutdown).

(If leaving fuel in boat for more than 30 days, be sure to also add Mercury QuickStor).
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[carolinagreenhead]

Mercury marine is not going to advertise or put in the manual what the recommended mix is to used lubricate the injectors. Because of the EPA star rating on the optimax engines the EPA does not want oil mixing with the fuel and then burning in the combustion chamber.

I could care less about the EPA. I care about my motor.

[gonnabe]

I didn't learn the info I received from Don but from let's call it the horses mouth. I then reaffirmed it with Don.

[carolinagreenhead]

Found it



ALL of the components can be intermixed... and it's fine to simplify the small fractional amounts of Premium Plus:

1oz Quickare
1oz Quickleen
4oz Premium Plus
_______________
Per 5 gallons fuel.


OR.....

2oz Quickleen
2oz Quickare
8oz Premium Plus
----------------------
Per 10 gallons fuel.

Note: Remove soda labels from bottles so your fishing partner doesn't grab one and take a "swig".

[Jeff Hahn]

Mercury marine is not going to advertise or put in the manual what the recommended mix is to used lubricate the injectors. Because of the EPA star rating on the optimax engines the EPA does not want oil mixing with the fuel and then burning in the combustion chamber.

THIS^^^. As long as it's not spewing "toxic" oil smoke, the EPA doesn't give a rat's a$$ if your motor burns up. Don does.

[Randrat]

I bought a 520 used in 2012. It was an 03. I started using Don's cocktail in it and could see the benefits. The exhaust area in the prop was covered with a nasty, oily carbon layer. After using the cocktail my prop and exhaust are squeaky clean. I'll keep using the cocktail.