Fuel Additives for Petrol Engines

[wakeup]

I know there has been plenty of debate regarding fuel additives for diesel engines, but does anyone have either any annecdotal or empirical evidence for the use of additives in petrol engines.

I've got a 5litre petrol lump and if there is a product out there that could improve running efficiency by even 1% it would pay for itself. This approach may be mor relevant for petrol than diesel because of the aging of petrol and the degradation of the ocotane over time. Do any of these additives help improve the octane rating or prevent the aging.

The only product i've seen so far is fuel set but haven't tried it.

Cheers

Wakeup

 

[rich]

Try Soltron, it works with all Diesel, petrol, 2stroke,

 

[wakeup]

Errr how can it work for petrol, I thought this was an enzyme for killing diesel bug, can't see how it can work for petrol.

PPlease don't turn this into a Soltron debate, i'd like to hear about other products that are petrol specific.....

 

[JKay]

I use quicksilver by mercury keeps every thing clean internally ,and with our unleaded no sludge and keeps the petrol volatility

cheers Joe

 

[gjgm]

doesnt oneof the petrol companies promote one of their fuels with some additive? Mind you it seems so expensive that it would need a hell of an improvement.
Think the real improvement is from reducing the weight of the boat (do you need all that garbage on board), maybe less water or even less fuel if appropriate, good condition hull and props, and most of all, easy with the throttle. When you think consumption doubles for the last 10pct gain in speed, i m not sure any additive would score too well on a comparrison of economy measures. As regards fuel degradation.. well dont use the boat as a storage tank!

 

[corncob]

Try Quicksilver Fuel system treatment and stabilizer 92-802875Q1 prevents fuel degradation, and keeps the fuel system clean?

 

[BarryH]

If you do want to add some "go faster" juice to your petrol then look at treating with Redex while using the boat and Fuelset or Sta-bil while laid up.
I've been using redex for years. Keeps carbon deposits down adds a little upper cylinder lubricant and keeps your fuel system/carbs/injectors clean.

Steer clear of octane boosters. They can really do damage over a period of time with valve seat erosion and ring wear. Lead addatives really ain't worth worrying about in a boat engine. It just doesn't get the useage.

All the addatives under the sun won't make up for an engine not running in tune. So a good maintanance schedule will do more for the engine than any addative.

 

[ArthurWood]

I have two 7.4l petrol lumps and I agree with others in that reducing boat weight will do more for efficiency than adding some stuff of dubious effect to your tanks. Mercruiser recommend Sta-bil for storage, but my fuel doesn't stay in the tanks long enough to go off. I'll get through 200-odd US gal in the next couple of days, then 200 on the next day on the way to the Keys. Bit painful spending $500 to fill up today, but I did save $100 by going across the bay to fill up rather than using our marina's pumps. Nothing compared to what TCM will spend, however.