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Initial D World - Discussion Board / Forums > Technical Discussion > Fuel Cleaning Injection


Posted by: ChennyZ Feb 23 2014, 02:58 PM
what is a good brand fuel cleaner? i've been using STP mostly, and i've recently read that Redline is a better product and it acutally works instead of STP?

is it OK to use for semi-synthetic or synthetic motor oils?
any thoughts?

Posted by: Spaz Feb 23 2014, 07:37 PM
What do you mean you've "been using"? Unless you're running shit gas there's no reason to regularly use a cleaner. Where're you filling up usually?

Also, what do you mean if it's okay to use those oils? Of course it is. You aren't actually expecting any sort of bad thing to happen by using a better oil, are you?

Posted by: ChennyZ Feb 24 2014, 07:23 PM
well during a full tank fill up of 87 octane i dump a bottle of STP fuel cleaner in there every 4 months or so. im just asking does these cleaners actually work and help clean your fuel line, start up, etc etc...

and would other products be better then STP? more bang for the buck kinda deal, or do these fuel cleaners actually work at all?

Posted by: Spaz Feb 25 2014, 09:42 AM
They work, yes, but it's not a question of functionality, more of necessity.

Gasoline is a pretty strong solvent, and will break down most contaminants on its own, and if you use quality fuel it should have detergents in it already. I use it regularly when running E85 (E is a terrible solvent), but otherwise it's only an as perceivably necessary deal on pump gas.

Posted by: ChennyZ Feb 25 2014, 11:27 AM
what would be a good brand to buy? i've read that Redline S1-1 is the best fuel cleaner out there.

Posted by: celbii Mar 5 2014, 03:08 PM
I like the redline cleaner, though I can never find it local, only the diesel version, so I always buy it online. I have used it in various cars that i've tracked MPG in have had a 1-4 mpg increase on each one. Good stuff.

Posted by: Tygur Mar 11 2014, 03:02 AM
From the parts store I was at, everyone swore by Seafoam. Even the other employees. Some liked Lucas also because it supposedly has lubricant for the valves. Usually you don't need it, though. If you want a good clean, take it to redline a few times to get the carbon buildup out a bit. Idling, low RPMs and using too high octane fuel tends to build up carbon. This is one reason why it is better to not idle your car to warm it up in winter, that and it wears faster when cold. Drive it, keeping it low on the RPMs to gently warm it up quickly, less wear in the long run. Works better on auto trans since the fluid goes through the radiator usually and warms up quicker altogether when driven.

On synthetic oil vs dino oil, they are mixable. Synthetic is typically better in every situation. Some people complain about oil leaks, but what happens is, the synthetic usually cleans a little better than dino oil, cleans crud out of seals, basically reveals leaks that were already there but plugged up with crud.

Posted by: ChennyZ Mar 11 2014, 02:16 PM
QUOTE (Tygur @ Today, 6:02 AM)
This is one reason why it is better to not idle your car to warm it up in winter, that and it wears faster when cold. Drive it, keeping it low on the RPMs to gently warm it up quickly, less wear in the long run. Works better on auto trans since the fluid goes through the radiator usually and warms up quicker altogether when driven.

wait i dont have to let the car warm in the winter? even if i drive standard. i thought that was always a good thing to let the car warm up a bit.

Posted by: Spaz Mar 12 2014, 04:20 AM
It's good to let the car warm up, yes. But it is also not good to let it run too long while not warmed up.

There's a happy medium of light driving in there.

Posted by: bttrflywngs May 4 2014, 11:40 AM
Using fuel cleaners are absolutely unnecessary (like Spaz has mentioned), unless you run with fuel of really bad quality. Their claims are more of a gimmick than an actual performance enhancement. Just make sure you buy from a reputable gas station (regardless of octane level).


If you really want to clean your fuel system, the proper way to do it is to take it apart and clean it piece by piece or area by area.

In situations where you let your car sit for a long while (months or years) without running the engine, moisture may accumulate in your fuel tank. Use a water removing product before your next fill up to avoid engine problems, when you plan to use the car again.

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