 Fuel Injector Cleaner |
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| gfg3 |
 Jan 27 2026, 10:32 AM
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#1
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Never Too Old  Group: Members Posts: 126 Joined: 5-January 15 From: Southern Virginia Member No.: 18,295 Region Association: None  |
My '75 1.8L with stock fuel injection system is running rough. I'm thinking a fuel injector cleaner is in order. Red Line SI-1, Lucas and the old standby I use for my boats, Sea Foam, seem to get the best reviews. Any advice or other options?.
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| MartyYeoman |
Jan 27 2026, 10:39 AM
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#2
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Senior Member Group: Members Posts: 1,541 Joined: 19-June 03 From: San Ramon, CA Member No.: 839 Region Association: Northern California 
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Techron works good for me. Works best when you can burn a full tank of fuel at once. Like on a extended drive or long trip.
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| Jack Standz |
Jan 27 2026, 11:28 AM
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#3
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Senior Member Group: Members Posts: 687 Joined: 15-November 19 From: Happy Place (& surrounding area) Member No.: 23,644 Region Association: None
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We send them to Mr Injector.
Quick turn around and a report that shows real data like injector flow/rate, pattern, leaking, etc. Also comes with new seals and pintle caps, etc. No guesswork. Takes that out of the possibilities when troubleshooting issues. Just got a set back last week (for a Toyota) and could actually feel the difference when driving the car. |
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| Ninja |
Jan 27 2026, 05:06 PM
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#4
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Member Group: Members Posts: 86 Joined: 25-September 25 From: Granbury Texas Member No.: 29,004 Region Association: Southwest Region |
QUOTE(Jack Standz @ Jan 27 2026, 11:28 AM)  We send them to Mr Injector. Quick turn around and a report that shows real data like injector flow/rate, pattern, leaking, etc. Also comes with new seals and pintle caps, etc. No guesswork. Takes that out of the possibilities when troubleshooting issues. Just got a set back last week (for a Toyota) and could actually feel the difference when driving the car. (IMG:style_emoticons/default/agree.gif) (IMG:style_emoticons/default/agree.gif) Unless the current injectors are less than 5 years old. Most injection cleaning services clean the injector both directions (back flushing!) and it does so much better a job than any "mystery juice". I use a bunch of Seafoam, but I do not use it as an injector cleaner. For injectors I will use "Techron" in the skinny black bottle. I've seen that same black bottle (with an overlay sticker) from VW, Honda, and Mazda. 1 bottle per tank and then drive long distance is best. But I don't expect much from the bottle and would prefer to send them out |
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| mepstein |
Jan 27 2026, 07:14 PM
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#5
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914-6 GT in waiting Group: Members Posts: 20,367 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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QUOTE(Jack Standz @ Jan 27 2026, 12:28 PM) We send them to Mr Injector. Quick turn around and a report that shows real data like injector flow/rate, pattern, leaking, etc. Also comes with new seals and pintle caps, etc. No guesswork. Takes that out of the possibilities when troubleshooting issues. Just got a set back last week (for a Toyota) and could actually feel the difference when driving the car. I've sent hundreds of injectors to him. Fast turn around, good pricing, before and after flow reports. He puts on a new seal and I think he also does the little screen. |
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| TRP |
Jan 27 2026, 07:50 PM
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#6
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Member Group: Members Posts: 188 Joined: 2-September 23 From: Morgan Hill, CA Member No.: 27,559 Region Association: None
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| mepstein |
Jan 27 2026, 07:54 PM
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#7
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914-6 GT in waiting Group: Members Posts: 20,367 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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