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#3389813 - 06/05/14 02:12 PM Which additive to clean the fuel sender?
bonbon Offline


Registered: 06/05/14
Posts: 2
Loc: London England
The level gauge of my 200k mile Z3 is stuck on empty - even when the tank is full. In the past, when it used to go whacky, a tank of high octane would put it right for 6-12 months. Now......nada.
Before I cut the carpet to access the fuel sender, I wondered which product is better to possibly clean out any surface contaminants: I'm thinking between Redline SI-1 and BG44K.
Any insights would be welcome...

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#3389819 - 06/05/14 02:20 PM Re: Which additive to clean the fuel sender? [Re: bonbon]
gman2304 Offline


Registered: 08/11/11
Posts: 1262
Loc: n.c.
Chevron Techron concentrate, not the progard.

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#3389836 - 06/05/14 02:40 PM Re: Which additive to clean the fuel sender? [Re: bonbon]
NMBurb02 Offline


Registered: 09/12/12
Posts: 1768
Loc: Crowntown, CA
Any PEA-based fuel system cleaner should do the trick, so SI-1, Techron Concentrate, Gumout Regane, etc. Not sure if BG44K is PEA.
_________________________
2002 Chevy Suburban 1500, G-Oil 5W-30, Fram TG3675
2006 Pontiac Grand Prix GT, Castrol SynBlend 5W-30, Fram TG3387A

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#3389837 - 06/05/14 02:43 PM Re: Which additive to clean the fuel sender? [Re: bonbon]
demarpaint Offline


Registered: 07/03/05
Posts: 23204
Loc: NY
I'd give Red Line or Techron a try. Maybe two back to back tank fulls of gas. I had good luck with MMO as well, but I think the other two are better cleaners.
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#3389848 - 06/05/14 02:52 PM Re: Which additive to clean the fuel sender? [Re: gman2304]
tightwad Offline


Registered: 04/23/12
Posts: 318
Loc: Texas
Originally Posted By: gman2304
Chevron Techron concentrate, not the progard.

absolutely
_________________________
2007 Caddy DTS/Havoline Synth 5w-30/Mobil-1 O/F
1983 El Camino/Havoline 5w-30/ACDelco(non-E-core)
1956 Packard/Delo 15w-40/Wix

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#3389870 - 06/05/14 03:23 PM Re: Which additive to clean the fuel sender? [Re: bonbon]
SLATRON Offline


Registered: 10/20/13
Posts: 389
Loc: upstate NY
+1 for Techron, it worked great for me when gas gauge was getting wacky, ran out of gas twice cuz of it when not paying attention.
I don't know about in UK but here can be pretty cheap too, both Advance Auto & Auto Zone have buy 1 get 1 free sale right now.

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#3389872 - 06/05/14 03:25 PM Re: Which additive to clean the fuel sender? [Re: bonbon]
Clevy Offline


Registered: 11/11/10
Posts: 9308
Loc: Saskatoon canada
I found tc-w3 or mmo in the fuel seem to help the sending units.
_________________________
2006 Charger RT
Miles x 2 per oil filter

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#3389877 - 06/05/14 03:29 PM Re: Which additive to clean the fuel sender? [Re: gman2304]
copcarguy Offline


Registered: 12/06/12
Posts: 65
Loc: PA
Originally Posted By: gman2304
Chevron Techron concentrate, not the progard.


+2? lol

Techron really is a miracle in a bottle lol.

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#3389913 - 06/05/14 03:58 PM Re: Which additive to clean the fuel sender? [Re: bonbon]
29662 Offline


Registered: 05/14/14
Posts: 464
Loc: sc/fl
My clients have had succes with both Techron and Sl-1.

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#3389914 - 06/05/14 03:59 PM Re: Which additive to clean the fuel sender? [Re: Clevy]
4wheeldog Offline


Registered: 04/23/12
Posts: 1084
Loc: East Mountains, NM
Originally Posted By: Clevy
I found tc-w3 or mmo in the fuel seem to help the sending units.


Every time I have ever had an issue with a fuel gauge, a wire was broken on the float unit in the tank. But I am old, and it hasn't happened in over 30 years, so what do I know?

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#3389934 - 06/05/14 04:11 PM Re: Which additive to clean the fuel sender? [Re: bonbon]
badtlc Offline


Registered: 06/08/06
Posts: 4563
Loc: KC


Edited by badtlc (06/05/14 04:12 PM)
_________________________
2007 Ford Escape XLS 2.3L ATX, ARX/Trop Artic 5W30, MC Fl910s, 125k+
2012 Mazda 3i Skyactiv M1 AFE 0W20, 6spd MTX Redline MTL, 45k+

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#3391190 - 06/06/14 11:38 PM Re: Which additive to clean the fuel sender? [Re: bonbon]
barkingspider Offline


Registered: 12/22/13
Posts: 752
Loc: socal
Berrymans B12 chemtool worked faster and better than techron in my vette, but it's just a band aid.
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04 Chevy Silverado
13 BMW 328i (wife)

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#3391374 - 06/07/14 10:00 AM Re: Which additive to clean the fuel sender? [Re: bonbon]
Boss302fan Offline


Registered: 11/07/09
Posts: 2171
Loc: Oconomowoc Wi
If you have BG44K use it... Great stuff but costly. Redline may also work but I do know that BG44K can help with fuel senders... I had that issue in an old Mustang and it did the trick.
_________________________
John P
Wisconsin
2006 Lexus LS 430
1990 Jaguar XJS V12
2011 Hyundai Santa Fe V6
Other fun cars

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#3391485 - 06/07/14 01:45 PM Re: Which additive to clean the fuel sender? [Re: bonbon]
bonbon Offline


Registered: 06/05/14
Posts: 2
Loc: London England
Boss,
I got a similar recommendation from a performance car restorer who said that BG44K is more aggressive than Redline. He uses the Redline in between BG44K uses( which he uses every 10k miles).
When the tank is virtually empty I'll give it a shot with a tank of 98 Octane. Hope for the best...

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#3392834 - 06/09/14 08:44 AM Re: Which additive to clean the fuel sender? [Re: bonbon]
Boss302fan Offline


Registered: 11/07/09
Posts: 2171
Loc: Oconomowoc Wi
Good Luck... I hope it works for you.
_________________________
John P
Wisconsin
2006 Lexus LS 430
1990 Jaguar XJS V12
2011 Hyundai Santa Fe V6
Other fun cars

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