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Which fuel cleaner and oil change #5004383
02/07/19 09:32 PM
02/07/19 09:32 PM
Joined: Jan 2019
Posts: 11
Wash DC
sibhus Offline OP
sibhus  Offline OP

Joined: Jan 2019
Posts: 11
Wash DC
Bought a used BMW and have already changed the oil but forgot to run some fuel cleaner. I was curious are BG44, Techron and Redline the main cleaners to look for, any opinions as to which are the best? And is it a must to change the oil or how long can wait before changing it after running the cleaner.

Thanks

Re: Which fuel cleaner and oil change [Re: sibhus] #5004397
02/07/19 09:47 PM
02/07/19 09:47 PM
Joined: Mar 2014
Posts: 3,944
NJ
Leo99 Offline
Leo99  Offline

Joined: Mar 2014
Posts: 3,944
NJ
Why do you think it needs a fuel cleaner?


Without data you're just another person with an opinion. W. E. Deming

2003 Corolla 250,000 miles (RIP)
2004 Corolla 125,000 miles
2004 Rav4 370,000 miles
2015 Camry 70,000 miles
Re: Which fuel cleaner and oil change [Re: sibhus] #5004399
02/07/19 09:47 PM
02/07/19 09:47 PM
Joined: Aug 2008
Posts: 24,975
ON, Canada eh?
StevieC Offline
StevieC  Offline

Joined: Aug 2008
Posts: 24,975
ON, Canada eh?
Out of the ones you listed I've been happy with Redline SI-1 and I have run it after an oil change. No issues. I generally like to put it in the last tank of gas before an oil change, run it right down, re-fuel and then change the oil but there is nothing saying you have to do it this way.

Originally Posted by Leo99
Why do you think it needs a fuel cleaner?


Some manuals call for it. My Toyota Highlander did.

Last edited by StevieC; 02/07/19 09:48 PM.

'18 Caravan - 34k KM - AMSOIL SS 0w20, Fram Ultra, TC-W3 500:1
'06 Santa Fe - 535k KM (Retired)

There is no such thing as "lifetime" fluids! mad
Re: Which fuel cleaner and oil change [Re: sibhus] #5004400
02/07/19 09:52 PM
02/07/19 09:52 PM
Joined: Aug 2015
Posts: 1,138
CA, USA
paulri Online content
paulri  Online Content

Joined: Aug 2015
Posts: 1,138
CA, USA
I called Techron's support line a few months ago, and the guy told me that it didn't matter (when during the OCI to run the cleaner). I have read as much in threads on here, on the same question.


2005 Toyota Sienna LE; 163,000 miles
2006 Toyota Highlander Hybrid 118,000 miles
Re: Which fuel cleaner and oil change [Re: sibhus] #5004433
02/07/19 10:33 PM
02/07/19 10:33 PM
Joined: Jan 2019
Posts: 11
Wash DC
sibhus Offline OP
sibhus  Offline OP

Joined: Jan 2019
Posts: 11
Wash DC
Thanks for the feedback, I had bought a used bmw and was unsure what fuel the prior owner was running in it and since I was changing out all the fluids thought id run a cleaner as well.. I know BMW uses Techron and sold under the BMW name but not going to pay dealer price.

Re: Which fuel cleaner and oil change [Re: paulri] #5004438
02/07/19 10:38 PM
02/07/19 10:38 PM
Joined: May 2005
Posts: 4,877
SF Bay Area
y_p_w Offline
y_p_w  Offline

Joined: May 2005
Posts: 4,877
SF Bay Area
Originally Posted by paulri
I called Techron's support line a few months ago, and the guy told me that it didn't matter (when during the OCI to run the cleaner). I have read as much in threads on here, on the same question.

It was a long time ago, but way back when Chevron had a recommendation that the best time to us Techron Concentrate would be right before an oil change. The rationale was that the high detergent content could get into the oil and deplete some of the oil additives. I suppose the idea was to have a fairly short time where the additives were artificially depleted. They didn't really explain it though. A lot could have changed, including what went into the bottle as well as the additives used in motor oil.

Re: Which fuel cleaner and oil change [Re: sibhus] #5004723
02/08/19 10:49 AM
02/08/19 10:49 AM
Joined: Nov 2011
Posts: 5,134
MTL, CANADA
Rolla07 Offline
Rolla07  Offline

Joined: Nov 2011
Posts: 5,134
MTL, CANADA
Originally Posted by sibhus
Bought a used BMW


This part is what scares me...


2007 Corolla Red Pearl 155k miles
PP 0w20 & ST 4967

Re: Which fuel cleaner and oil change [Re: sibhus] #5004805
02/08/19 12:22 PM
02/08/19 12:22 PM
Joined: Nov 2011
Posts: 1,551
Lyndhurst NJ
Audios Offline
Audios  Offline

Joined: Nov 2011
Posts: 1,551
Lyndhurst NJ
Techron makes the BMW cleaner, but Redline is a great brand as well.


2002 VW Golf TDI-Mobil 1 5/40 TDT
2007 Mercedes GL320 CDI- M1 0/30 ESP
2005 BMW M3 BMW Twin Power 10/60
2003 BMW M5-Fuchs 5/40
1998 BMW M3/4/5 Fuchs 5/40
Re: Which fuel cleaner and oil change [Re: sibhus] #5004855
02/08/19 01:15 PM
02/08/19 01:15 PM
Joined: Sep 2002
Posts: 2,760
VA
Gebo Offline
Gebo  Offline

Joined: Sep 2002
Posts: 2,760
VA
When I got my last used car, I used 4 different ones in 4 different tanks of gas. Probably stupid but I was confident I had all the bases covered.


'98 LEX LS400 295K
'02 4Runner 235K
'05 Lex LS430 85K
'07 Lex GX470 65K

Schaeffer Oil
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
(Subject to Change as the Wind Blows)
Re: Which fuel cleaner and oil change [Re: sibhus] #5004897
02/08/19 02:03 PM
02/08/19 02:03 PM
Joined: Mar 2008
Posts: 6,170
South Florida
bubbatime Offline
bubbatime  Offline

Joined: Mar 2008
Posts: 6,170
South Florida
Just for the sake of conversation, over a million miles driven and not one ounce of "fuel system cleaner" has ever entered my tank. Shrug?


17 Chrysler Pacifica Edge Syn 5W30
13 Yamaha XT250 Valv MC 10W40
10 Acura TSX 2.4 Edge 0W40
06 GMC Sierra SuperTech 10W30


Re: Which fuel cleaner and oil change [Re: sibhus] #5004911
02/08/19 02:18 PM
02/08/19 02:18 PM
Joined: Nov 2009
Posts: 98
Midlothian, VA
TiGeo Offline
TiGeo  Offline

Joined: Nov 2009
Posts: 98
Midlothian, VA
Used Techtron and BG44K. Just once every few years. Probably not too critical if you use Top Tier gas. Never heard of an issue of the oil change before but could make sense I suppose.


2018 VW Atlas SEL 4Motion 3.6 VR6 - Castrol 5W40 OE filter
2018 VW GSW S 4Motion 1.8 TSI - Liqui-Moly 5W40 OE filter
2013 Ford Focus SE HB 2.0 Ti-VCT - MotorCraft 5W20 OE filter
#K&N4LYFE
Re: Which fuel cleaner and oil change [Re: sibhus] #5004944
02/08/19 02:57 PM
02/08/19 02:57 PM
Joined: Jan 2011
Posts: 503
California
DGXR Offline
DGXR  Offline

Joined: Jan 2011
Posts: 503
California
Besides the extra detergents possibly depleting the oil additives, another argument for using the fuel cleaner just before an oil change is this: the cleaning action may add carbon to the oil, making it dirty quicker, and you don't want that extra carbon running around your motor for thousands of miles. Can't say what cleaner is better than the others, but all 3 that you mention are known to be effective. I've heard many times that the BG44 is "the best" but those 3 all work. Good luck with the "new" BMW.


1995 Corvette coupe LT1 6-speed
2006 Tacoma 2.7 Base SR5 AC
1999 Yamaha YZ400FL
2003 Honda XR400R
Re: Which fuel cleaner and oil change [Re: sibhus] #5007663
02/11/19 08:38 AM
02/11/19 08:38 AM
Joined: Jun 2014
Posts: 21
VA
mpgo4th Offline
mpgo4th  Offline

Joined: Jun 2014
Posts: 21
VA
In my opinion it would not matter in a good condition engine. If you have done UOA's and your engine shows no fuel present in the used oil sample, than fuel additives won't be present either.

Re: Which fuel cleaner and oil change [Re: sibhus] #5010256
02/13/19 06:16 PM
02/13/19 06:16 PM
Joined: Aug 2018
Posts: 136
Earth
GZRider Offline
GZRider  Offline

Joined: Aug 2018
Posts: 136
Earth
BMW sells relabeled Techron through their dealer network for twice the price. Do with that info what you will.

Re: Which fuel cleaner and oil change [Re: Audios] #5010276
02/13/19 06:47 PM
02/13/19 06:47 PM
Joined: May 2005
Posts: 4,877
SF Bay Area
y_p_w Offline
y_p_w  Offline

Joined: May 2005
Posts: 4,877
SF Bay Area
Originally Posted by Audios
Techron makes the BMW cleaner, but Redline is a great brand as well.

Red Line used to sell a product called SI-2. It was supposed to be a less concentrated version of SI-1. I saw it once (20 years ago or longer) and it carried a BMW equivalent part number. That was supposed to be a one bottle per tank fuel treatment. It's no longer listed, but the MSDS is still available.

https://www.redlineoil.com/content/files/tech/SI-2%20MSDS.pdf

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