using TCW in petrol for etec

two stroke mick · 13 September 2016, 17:34

I am wondering if using tcw3 in the petrol of an etec say 100:1 along with the XD 100 in the tank would help injector/ engine life? Does anyone here do it? Thoughs and observations please

TSM

Seaflyer02 · 13 September 2016, 17:39

I thought XD100 is fully synthetic and cannot be mixed with normal TCW3. If you run XD50 that is compatible. Instead of putting TCW3 in the tank why not just use Evinrude carbon guard?

Pikey Dave · 13 September 2016, 17:45

Quote:

Originally Posted by two stroke mick

I am wondering if using tcw3 in the petrol of an etec say 100:1 along with the XD 100 in the tank would help injector/ engine life? Does anyone here do it? Thoughs and observations please

TSM

I was advised to add an egg cup full of oil to 20l of fuel. Use the same oil as you use in the engine. The extra lubricity helped the injectors. It's the ethanol in the petrol that "dries" the fuel.

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office888 · 13 September 2016, 18:48

I believe with the ETEC, the crank bearings are divorced completely from the combustion chamber?

Oil is direct injected on the bearings, not in to the combustion stream.

If you add oil, it will never make it back to the bearings, because the system isn't designed to work that way...it'll just blow out the exhaust.

Don't quote me on this though, I'm not an expert on ETECs.

MatFromPoland · 13 September 2016, 18:55

Why not use "Johnson Evinrude 2 + 4 Fuel Conditioner"

Or why not to follow conclusion from EvinrudeNation:

Quote:

If you are using XD-100 oil, you do not need any type of decarbonizing additive.

I do have a lot 2+4 but always forgot to use it. I think I usually start to use it before winter ...

Pikey Dave · 13 September 2016, 19:25

It's not about decarbonising or lubing the crank. It's to lubricate the injectors. The Etec injectors use a voice coil system & operate at a high frequency. They use the fuel passing through them to cool the coils. Modern ethanol fuels are "dry" & the lack of lubricity in the fuel can cause the injectors to overheat. Adding a splash of oil helps to combat this.
A splash of 2 stroke wouldn't hurt any modern DI engine, even 4strokes IMHO. The problem will get worse as the ethanol content of fuel increases.

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MatFromPoland · 13 September 2016, 19:45

I'm not PHD at chemistry or engines. My favorite motto is "I know that know nothing" or something like that.
I can not buy in Poland petrol not having any new cosmic formula improving fuel consumption, cleaning engine, doing some more. It is really impossible to buy "nromal pure petrol". How can I know if I add something more to petrol not cause some reaction or reverse results ... Maybe adding XD100 directly to petrol is not bad idea at all or maybe it be too much.
But I understand that for winterization 2+4 conditioner be better than adding oil to tank ?

Northern Pike · 15 September 2016, 20:23

Try asking your question here: Owners Message Board

alfaalfa · 19 September 2016, 21:53

E-tec made in the US, few countries with more added ethanol then the US. If they do not have any problems with the fuel, then why worry.

wellhouse · 20 September 2016, 07:47

Johnson Evinrude 2 + 4 Fuel Conditioner? Can't understand the logic in that as it appears to be made with ethanol? Most modern fuels have cleaning agents added to them already, i believe it is the water content in your fuel tank that causes potential injector problems especially if the engine is not used regularly. Good water separator/fuel filter would surely be better?

two stroke mick · 20 September 2016, 07:59

I have used the fuel condItioner in the past. I found there were small metal lumps in the bottom of the can as not a lot was sold on the west coast of Ireland. The product was probably stale.. such a product would cause more harm than good. Just trying to get the best out of the engine and protect the injectors. Used the product on two occasions

Tsm

Chris · 20 September 2016, 08:02

Quote:

Originally Posted by alfaalfa

E-tec made in the US, few countries with more added ethanol then the US. If they do not have any problems with the fuel, then why worry.

I think its fair to say they do have issues with Lots of Ethanol in the fuel and most try to run fuel with low or no ethanol. The main problem is when they get phase separation of the fuel, lots of pictures of this on the net.

MatFromPoland · 20 September 2016, 10:37

2+4 contains isopropanol (if I remember) not ethanol.
But yes it is alcohol also but different one

Busting Ethanol Fuel Myths | West Marine

About idea to add XD100 oil into fuel tank:
- it has not impact to fuel separator and filter ?

>>>>>>>>>>>>>>

Haha I have found this:
Warning about ethanol plus advice to use 2+4

http://www.theoutboardwizard.com/boa...recaution.html

Quote:

1. If possible, try to avoid using ethanol fuel blends in your outboard and marine engines.

If you are unable to obtain alcohol-free fuel in your area, you SHOULD TEST THE FUEL YOU BUY to assure the ethanol content is at or below 10 %.

...
7. Make sure your motor is equipped with a water separating fuel filter.
Evinrude E-Tec's, and other newer engine models have them, other engines may or may not. The installation of a water separator in the fuel line will help with small amounts of water. Some marine engines are also equipped with water sensors.

8. Check fuel system for contaminants and clogging and replace your fuel filter often.
Fuel filters should be replaced at least every 50 -100 hours.

9. Evinrude - Johnson 2 + 4 fuel conditioner will stabilize fuel, inhibit corrosion and absorb moisture (water) without adding alcohol to the fuel. Add fuel conditioner at every gas fill-up.