vahdyx

iTrader: (7)

When I worked for a Honda Dealership and owned a Integra, I added MOA and 44K to my car all the time. I added STP's Fuel cleaner and Octane booster here and there, but with my Honda discount, I couldn't help but to take advantage of the discount.

Eventually, there was a service bulletin about MOA and 44K on older Honda's and how it's not recommended anymore.

Anyway, I was curious if you guys add additives to maintain your car or if you don't bother.

Currently I add octane booster and I plan on adding MOA or something on my next oil change. Do you guys advise against this?

ecot3c inside

iTrader: (11)

add couple gallons of E to your full tank.

Iam Broke

iTrader: (10)

Since I run 50% ethanol, I add 4 oz Marvel Mystery Oil for some fuel system & cyl lube with 10 gals of fuel.

Seafoamed it every 20k or so twice, that's all.

JimmiLS05

Full Blown Bubble Gum Fuel Fragrance | 900-493 | J&P Cycles

Malaclypse

iTrader: (1)

I'll put a 44k in the tank every 20k miles. I don't put anything in the oil, though. If you change it properly, synthetic oils will keep the motor looking spotless inside. I personally don't go by the oil life monitor. I do alot of short trips in high ambient temps so I change my oil every 5 k or so.

cobaltSSbrennan

iTrader: (1)

that is awesome

cmiller8006

iTrader: (3)

I love going to the track and smelling that coton candy or grape flavors.

rnjmur

Those *additives* are mostly a waste of money. I have never added any additives to anything except a bottle of fuel system cleaner once a year.

bri2203

iTrader: (10)

I add 2 oz of 2-stroke oil to my gas tank every other fill up.

to lubricate the fuel pump and injectors.

09BlueBaltSS

I do a fuel system treatment every 4-6 months and seafoam the motor(intake) once a year

doogie_13

iTrader: (1)

Upper engine flush straight from the schraeder valve on the suel rail 3 times a year. When I get the car out in the spring, one Late June/Early July and one before Fall storage.

I work at a dealership, so I get it done for free, the trick is finding the time to do it.

ronn

iTrader: (3)

I use MMO (Marvel Mystery Oil) and Red Line Fuel System Treatment about 3 oz ea at fill ups.
Found this read:

The cons:
- Most boosters raise the RON octane more than the MON octane, which
makes them fairly useless for most race applications, or high load
high heat situations
- Most of the better additives at this point are either Toluene or MMT
based. Toluene has the advantage of being relatively cheap, and fairly
effective at raising the octane even in fairly high percentages. Plus
it has good resistance to pre ignition which is an important consideration
in a two stroke. The downside is as you raise the percentage of Toluene
(or most aromatic hydrocarbon based additives) , the throttle response
quickly becomes flat and mushy. The snap goes BYE BYE.
So the engine won't knock, but it probably won't run worth a damn either.
- MMT based boosters (the most common today) quickly reach a point of
diminishing returns (i.e. the more you add the less it helps)
- Organometallic boosters like MMT can cause a huge increase in engine
deposits, and increase the risk of plug fouling and pre ignition
- Most boosters tend to kill the throttle response and make it
difficult to jet. Mix in the constantly changing base fuel your mixing
it in and you have a constantly moving target.
- Most octane boosters (especially toluene based) have high solvent
properties which can raise hell with reeds and crank seals in two-strokes
- If you need to raise the octane a significant amount, octane boosters
are much more expensive and much less effective than race fuels

There's more to it than this but I'm sure you get the point. Basically
it boils down to this, if your engine only needs a small increase in
octane as a safety margin then using octane booster is still better than blowing it up, but you'll likely give up throttle response for the
convenience. If you need a large increase in MON octane you won't get it from octane booster without paying more than you would for real race gas in the first place, plus it will run BAD. No snap, and an impossible to read plug.

Grishbok

Fuel additives are not federally regulated. They can put whatever they want in them and claim whatever they want. There have been extensive tests using a highly controlled laboratory engine showing that there is no evidence that any of these products actually do what they claim. To further investigate, Fifth Gear did a segment about this as well:

YouTube - 5th Gear - Myth about fuel additives

If you look at the chemicals in those products and how they break down during combustion, id be very surprised if you used them again. The only products i feel comfortable using, is seafoam and injector cleaner.

vahdyx

iTrader: (7)

Interesting

tom.g

iTrader: (4)

I use STP Fuel System Cleaner at every oil change. And I'm planning on doing Seafoam at 15k Miles which is coming up soon. I just don't know where the hell to find the stuff.

rnjmur

Autozone or pretty much any other auto part store.

Iam Broke

iTrader: (10)

Hell, even Wal-Mart stocks it.

Dirty25RS

This.

Dawn soap would be as effective as most system cleaner fuel additives.

tom.g

iTrader: (4)

We don't have Autozone in Canada

fakameanrepresent

iTrader: (4)

really? i didn't know that.

ecot3c inside

iTrader: (11)

huh?

cubaniche

iTrader: (1)

I thought most of that stuff was bad for our injectors? Only thing Ive ever done was seafoam once at 22k. I dont trust those other products on my injestors and DI engine.

ronn

iTrader: (3)

http://www.redlineoil.com/content/fi...ech%20Info.pdf

This could benefit DI engines:
"The detergents used survive the combustion
process and clean the PCV valve and the EGR port as
well as cleaning deposits in the combustion chamber."

cubaniche

iTrader: (1)

Wouldnt that be the same as seafoam?

Grishbok

Same principle as seafoam. Im not sure you really want to put anything in your engine, that survives the combustion process. These products should be used as a LAST attempt. There have been plenty of cases of these products losening and breaking up carbon deposits, only to have those pieces relocate to other parts of the motor and cause more significant damage. you are taking a chance using these products.