986 Forum - for Porsche Boxster & Cayman Owners

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-   -   Chevron Techron (http://986forum.com/forums/performance-technical-chat/75523-chevron-techron.html)

Newsguy 06-10-2019 05:07 PM

Chevron Techron
 
Since in frequent several forums and FB pages, I'm not sure where I read a suggestion for Techron for cleaning injectors. I purchased my '99 late last summer, and trying to rev it, found it falling on it's face about 5200 rpm. I put the bottle of Techron in, filled the tank and started driving. I haven't pushed it until today and ...it ran right on up to redline, no problem. I'm generally pretty skeptical about fixes in a bottle, but this one seems to work. Even more amaingly, I've only run it down to just under three-quarters of a tank. So, going forward, I suppose I'll be making an occasional habit of putting in a can.

BYprodriver 06-10-2019 06:21 PM

Two different E.P.A certification engineers told me to put nothing but Chevron supreme fuel in the new cars we built at Shelby American & Saleen Mustang. 1999 Shelby Series 1 & 1994 Saleen SR351. I have never had a fuel problem since then & no need to use additives.

Newsguy 06-10-2019 07:18 PM

Quote:

Originally Posted by BYprodriver (Post 597296)
Two different E.P.A certification engineers told me to put nothing but Chevron supreme fuel in the new cars we built at Shelby American & Saleen Mustang. 1999 Shelby Series 1 & 1994 Saleen SR351. I have never had a fuel problem since then & no need to use additives.

Unfortunately, that is not an option here. I do stick with Tier 1 fuels though, Shell or Sinclair. The Sinclair is at least ethanol-free!

KRAM36 06-10-2019 07:54 PM

Quote:

Originally Posted by Newsguy (Post 597300)
Unfortunately, that is not an option here. I do stick with Tier 1 fuels though, Shell or Sinclair. The Sinclair is at least ethanol-free!

Same here, no Chevron or Texaco gas stations near me. I do the same thing as you, I get ethanol-free gas from Quick Trip.

thstone 06-10-2019 08:41 PM

If the injectors were performing so poorly that the engine fell flat at 5200 rpm, then they are still performing poorly. The techron might have unplugged them a bit but you can be sure that they still drip, have poor spray patterns, and are out of calibration.

The fix in a bottle might help the situation but it doesn't fix the problem. I'd really recommend pulling the injectors and having them cleaned and calibrated. You'll be truly shocked at how much better an engine runs after having this done.

And if you haven't replaced the fuel filter in awhile, I'd do that too. You'd be amazed at how dirty even good gas is these days: http://986forum.com/forums/boxster-general-discussions/70474-dont-forget-replace-fuel-filter.html

Here is the report on my fuel injectors that I recently had cleaned/calibrated. The engine ran fine but seemed just a little low on power.

http://986forum.com/forums/uploads02...1555780518.jpg

KRAM36 06-10-2019 09:02 PM

Tom, what do they charge to do the cleaning and calibration?

Quadcammer 06-11-2019 04:32 AM

between $10 and $25 per injector depending on level of service and where you go

Gilles 06-11-2019 07:32 AM

Quote:

Originally Posted by thstone (Post 597305)
You'll be truly shocked at how much better an engine runs after having this done.

+ 1 on RC

Yes, the difference is amazing (very smooth running engine), also RC Engineering has great service as their turn around time is usually 24 hrs, last time I paid about $25 per injector.
.

BYprodriver 06-11-2019 10:23 AM

Quote:

Originally Posted by Gilles (Post 597334)
+ 1 on RC

Yes, the difference is amazing (very smooth running engine), also RC Engineering has great service as their turn around time is usually 24 hrs, last time I paid about $25 per injector.
.

Yes I have taken 3 sets there, amazed at how smooth the idle is after cleaning

KRAM36 06-11-2019 11:25 AM

Hum, have a company that sells remanufactured OE Bosch injectors with a 276cc flow rate and $56.58 shipped for all 6 injectors.

Racer Boy 06-11-2019 12:53 PM

That seems too good to be true.

KRAM36 06-11-2019 01:23 PM

Quote:

Originally Posted by Racer Boy (Post 597353)
That seems too good to be true.

https://i.postimg.cc/XqDfvmM0/injectors.jpg

https://www.ebay.com/itm/254017616708

thstone 06-11-2019 02:51 PM

Quote:

Originally Posted by KRAM36 (Post 597357)

Hmm. They seem curiously inexpensive.

The posting says, "Re-manufactured.We remove all part number message of eBay policy.".

All OE injectors have PNs on them. I'm guessing that they don't have any part numbers because they are knock-offs (eBay won't allow real PNs on non-OE parts).

Here is what my OE injectors looked like with the PN's clearly visible:

http://986forum.com/forums/uploads02...1514571330.jpg

KRAM36 06-11-2019 03:42 PM

So what would be the downside of buying these?

Starter986 06-11-2019 04:37 PM

Quote:

Originally Posted by KRAM36 (Post 597363)
So what would be the downside of buying these?

Having to replace second-rate parts for OEM.

Buy cheap, buy twice.

KRAM36 06-11-2019 05:58 PM

Quote:

Originally Posted by Starter986 (Post 597367)
Having to replace second-rate parts for OEM.

Buy cheap, buy twice.

How do we know these injectors are second rate parts?

Racer Boy 06-12-2019 06:41 AM

We don’t know, but they are so inexpensive as to be suspicious.

Why don’t you buy a set and give them a try?

KRAM36 06-12-2019 10:22 AM

Quote:

Originally Posted by Racer Boy (Post 597413)
We donít know, but they are so inexpensive as to be suspicious.

Why donít you buy a set and give them a try?

I don't have an issue with my injectors, car idles and runs fine. If I did buy them and said my car ran better, you all would accuse me of having a placebo effect.

How about you buy them and let us know, since all my experiences are placebo?

Newsguy 06-12-2019 11:49 AM

I did indeed change the fuel filter, and spark plugs as well.
Now since it only has 56k on it, do you really think the injectors need rebuilding?

blue62 06-12-2019 12:25 PM

Quote:

Originally Posted by Newsguy (Post 597455)
I did indeed change the fuel filter, and spark plugs as well.
Now since it only has 56k on it, do you really think the injectors need rebuilding?

If you used Techron ,changed fuel filter,and plugs all at the same time there is no way of telling which of the three (or combination of) fixed the problem.:confused:
Now a reason your injectors "MAY" need cleaned: Is the low miles and a 99.
It has sat for long periods of time so your injectors "MAY" be a little gummed up from setting.:rolleyes:
But it could have been a Dirty fuel filter and your injectors are fine:D


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