fuel injector cleaners/additives
09-17-2021, 03:06 PM
#1
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Thread Starter
fuel injector cleaners/additives
Curious to know if using fuel injector cleaner/additives is a recommended thing with Porsche engines and if so how often do you use it and which one do you recommend? Are these engines susceptible to carbon build up?
09-17-2021, 03:26 PM
#2
I would say it is not necessary
Just use premium fuel like you're supposed to
Just use premium fuel like you're supposed to
09-17-2021, 03:31 PM
#3
RL Community Team
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09-17-2021, 03:50 PM
#4
09-17-2021, 04:23 PM
#5
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You know that's a really good question.
I think if it was me and I wanted to know I'd reach out to a Porsche Certified Senior Technician that's been in the business for a great many years.
On any internet site I think you will simply have opinions ..............
I'm not going to use it ...........
Terry
09-17-2021, 04:39 PM
#6
Rennlist Member
FWiW, when I bought my 981 GT4 as CPO, I noticed some hesitation, and a slight knock/ping at early throttle, but really hard to replicate. Took tech from the dealership where I bought it for a test drive, who was able to confirm. Left the car with them for a few days..."no problem found". However when I picked up the car, tech gave me a bottle of BG-44k (as he stated, "this is what we use"), and was instructed to do a few WOT pulls in 3rd, after adding full bottle to empty tank, and then filling up with gas. I didn't notice an immediate improvement, and ran a 2nd bottle, but also around the same time, changed the air filters, which were obviously not checked during the CPO process, nor troubleshooting, or just disregarded, as several teaspoons of loose dirt fell out of both when removed. This after 2nd trip to same dealer, and 1st trip to a 2nd dealer for the same issue.
Car has been running fine since. I bought it with 30k miles, and apparently the original owner daily commuted from rural to northern VA area (heavy traffic), so probably a fair amount of stop/go usage, and "not tracked". That said, there was a significant amount of marbles in the intakes when I checked while the car was on the showroom floor, prior to purchase.
As always, YMMV.
p.s. - I also ran a bottle of BG-44k through my Mk6 GLI, after having carbon cleaned from head via "walnut blasting", and its running like new, and better than after the cleaning.
Car has been running fine since. I bought it with 30k miles, and apparently the original owner daily commuted from rural to northern VA area (heavy traffic), so probably a fair amount of stop/go usage, and "not tracked". That said, there was a significant amount of marbles in the intakes when I checked while the car was on the showroom floor, prior to purchase.
As always, YMMV.
p.s. - I also ran a bottle of BG-44k through my Mk6 GLI, after having carbon cleaned from head via "walnut blasting", and its running like new, and better than after the cleaning.
Last edited by colnagoG60; 09-17-2021 at 04:42 PM.
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tigerhonaker (09-17-2021)
09-17-2021, 04:48 PM
#7
Rennlist Member
FWiW, when I bought my 981 GT4 as CPO, I noticed some hesitation, and a slight knock/ping at early throttle, but really hard to replicate. Took tech from the dealership where I bought it for a test drive, who was able to confirm. Left the car with them for a few days..."no problem found". However when I picked up the car, tech gave me a bottle of BG-44k (as he stated, "this is what we use"), and was instructed to do a few WOT pulls in 3rd, after adding full bottle to empty tank, and then filling up with gas. I didn't notice an immediate improvement, and ran a 2nd bottle, but also around the same time, changed the air filters, which were obviously not checked during the CPO process, nor troubleshooting, or just disregarded, as several teaspoons of loose dirt fell out of both when removed. This after 2nd trip to same dealer, and 1st trip to a 2nd dealer for the same issue.
Car has been running fine since. I bought it with 30k miles, and apparently the original owner daily commuted from rural to northern VA area (heavy traffic), so probably a fair amount of stop/go usage, and "not tracked". That said, there was a significant amount of marbles in the intakes when I checked while the car was on the showroom floor, prior to purchase.
As always, YMMV.
p.s. - I also ran a bottle of BG-44k through my Mk6 GLI, after having carbon cleaned from head via "walnut blasting", and its running like new, and better than after the cleaning.
Car has been running fine since. I bought it with 30k miles, and apparently the original owner daily commuted from rural to northern VA area (heavy traffic), so probably a fair amount of stop/go usage, and "not tracked". That said, there was a significant amount of marbles in the intakes when I checked while the car was on the showroom floor, prior to purchase.
As always, YMMV.
p.s. - I also ran a bottle of BG-44k through my Mk6 GLI, after having carbon cleaned from head via "walnut blasting", and its running like new, and better than after the cleaning.
What you have said makes perfect sense.
Also, just for information .........
I know guys that have plus $100,000.00 dollar sports cars and they run 87 Octane Gas in them.
And they don't run them hard at all.
Meaning ^^^ no High-RPM use at all.
And as you said for those in the Super-Large-Cities with Hours & Hours of Stop & Go traffic.
Those conditions might very well call for running the Additive.
Terry
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09-17-2021, 05:01 PM
#8
Rennlist Member
colnagoG60,
What you have said makes perfect sense.
Also, just for information .........
I know guys that have plus $100,000.00 dollar sports cars and they run 87 Octane Gas in them.
And they don't run them hard at all.
Meaning ^^^ no High-RPM use at all.
And as you said for those in the Super-Large-Cities with Hours & Hours of Stop & Go traffic.
Those conditions might very well call for running the Additive.
Terry
What you have said makes perfect sense.
Also, just for information .........
I know guys that have plus $100,000.00 dollar sports cars and they run 87 Octane Gas in them.
And they don't run them hard at all.
Meaning ^^^ no High-RPM use at all.
And as you said for those in the Super-Large-Cities with Hours & Hours of Stop & Go traffic.
Those conditions might very well call for running the Additive.
Terry
"Italian tune-ups" are essential.
09-17-2021, 05:13 PM
#9
Burning Brakes
I have no evidence, but I suspect that sometimes 93 isn’t really 93.
09-17-2021, 05:30 PM
#10
Rennlist Member
09-17-2021, 06:06 PM
#11
Burning Brakes
"Italian Tune-Up" is definitely one way to do it 
. Porsche engine, like many other modern engines are GDI, thus carbon deposit will be an issue; however, Porsche may circumvent that if they had a secondary port injection in conjunction with their DI injector. I recalled that the 997.2 and beyond DI engines may have this secondary injector to minimize carbon deposits. Hoping that if this is true, then the Spyder/GT4 would be the same. Anyway, if not, then BG-44K is supposedly designed for GDI engine. I use it on my Tuned BMW X1, and thus far has not had any knocks, misfires, or loss in power, in my experience. But then again, I started using the BG-44K at 10K mileage, so I would not know if it really made a difference.
. Porsche engine, like many other modern engines are GDI, thus carbon deposit will be an issue; however, Porsche may circumvent that if they had a secondary port injection in conjunction with their DI injector. I recalled that the 997.2 and beyond DI engines may have this secondary injector to minimize carbon deposits. Hoping that if this is true, then the Spyder/GT4 would be the same. Anyway, if not, then BG-44K is supposedly designed for GDI engine. I use it on my Tuned BMW X1, and thus far has not had any knocks, misfires, or loss in power, in my experience. But then again, I started using the BG-44K at 10K mileage, so I would not know if it really made a difference.
09-17-2021, 06:29 PM
#12
Rennlist Member
"Italian Tune-Up" is definitely one way to do it . Porsche engine, like many other modern engines are GDI, thus carbon deposit will be an issue; however, Porsche may circumvent that if they had a secondary port injection in conjunction with their DI injector. I recalled that the 997.2 and beyond DI engines may have this secondary injector to minimize carbon deposits. Hoping that if this is true, then the Spyder/GT4 would be the same. Anyway, if not, then BG-44K is supposedly designed for GDI engine. I use it on my Tuned BMW X1, and thus far has not had any knocks, misfires, or loss in power, in my experience. But then again, I started using the BG-44K at 10K mileage, so I would not know if it really made a difference.
. Porsche engine, like many other modern engines are GDI, thus carbon deposit will be an issue; however, Porsche may circumvent that if they had a secondary port injection in conjunction with their DI injector. I recalled that the 997.2 and beyond DI engines may have this secondary injector to minimize carbon deposits. Hoping that if this is true, then the Spyder/GT4 would be the same. Anyway, if not, then BG-44K is supposedly designed for GDI engine. I use it on my Tuned BMW X1, and thus far has not had any knocks, misfires, or loss in power, in my experience. But then again, I started using the BG-44K at 10K mileage, so I would not know if it really made a difference.
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tigerhonaker (09-18-2021)
09-17-2021, 06:35 PM
#13
09-17-2021, 06:41 PM
#14
RL Community Team
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From the Chevron US website I see that this additive is also used by other brands: Fuels: Which Cleans and Protects your Engine — Chevron.com
In Canada, Supreme Plus (94) contains the highest concentration of Techron as compared to their lower grades of fuel, 91, 89 and 87.
I see that Techron is available for purchase separately:
Last edited by Westcoast; 09-17-2021 at 06:56 PM.
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KBS911 (09-19-2021)
09-17-2021, 07:01 PM
#15
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ditto I only use Chevon also for the same reasons