Fuel System Cleaner

6 replies [Last post]

imraojal

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Joined: 02/04/2017
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Post Date: Sat, 27/10/2018 - 6:45am

Hi there

Just asking if anyone tried this fuel system cleaner by Mitsubishi Motors for their GDI engines. Does it work or will it bring fuel pump issues or hesitation of the engine?

had-z

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Post Number: #1
Post Date: Tue, 20/11/2018 - 9:52am

I tried motul

Hi, i tried the motul one (motul car fuel system clean), no problem and no noticeable improvement.

fordem

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Post Number: #2
Post Date: Wed, 21/11/2018 - 12:18am

"Add to the tank" cleaners rarely work on a GDI engine.

Because the fuel system cleaner does not reach the back of the intake valves on the GDI engines, they do very liitle - but - introduce the same cleaner through the induction system (either the PCV valve or a vacuum line) and it WILL make a noticeable difference.

Now that the GDI engines are in widespread use and the tendency to carbon up the intakes is well known, GDI specific induction system cleaners have been introduced to the market and are readily available.

had-z

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Post Number: #3
Post Date: Wed, 21/11/2018 - 2:44am

How?

Hi fordem, how is possible to introduce that aditives through the pcv? Is available a spray aditive for GDI?

fordem

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Post Number: #4
Post Date: Sat, 24/11/2018 - 3:01pm

CRC makes one.

mjheathcote

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Post Number: #5
Post Date: Sun, 25/11/2018 - 12:36am

CRC isn't widely available in

CRC isn't widely available in the UK, however Sea Foam SS14 is available via Amazon in the UK at reasonable cost, similar if not the same.

Will be buying a can for my 1.8 GDI, don't have any issues (car only done 38K miles) but see it as a regular maintenance item to avoid any excessive build up of carbon.

bob_oz

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Joined: 31/03/2011
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Post Number: #6
Post Date: Wed, 09/01/2019 - 3:43pm

intake decarbon

the liqui-molly brand make one too,

was easy on an MPI as well - highly recomended