Carpokes

Engine Flush - Liqui Moly

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YOUR RESEARCHEngine Flush - Liqui Moly

Leading reported evidence

Replace i just don't see the need

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Unsuccessful attempts: 1
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Suggestion
If it was an old car that has been sitting for quite some time it might assist in breaking down varnish or OLD oil residue that has thickened/sludged with time, but on an engine that gets regular use with consistent oil changes, I just don't see the need.
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Engine Flush - Liqui Moly

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Leading evidence: 'Replace i just don't see the need' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace i just don't see the need' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Replace oil

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion · Original poster
I have a 2003 911 Carrera and I'm curious to hear what you think of adding the Engine Flush when you change oil.
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Engine Flush - Liqui Moly

Use with consistent oil

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion
If it was an old car that has been sitting for quite some time it might assist in breaking down varnish or OLD oil residue that has thickened/sludged with time, but on an engine that gets regular use with consistent oil changes, I just don't see the need.
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Engine Flush - Liqui Moly

Frequently discussed actions (3)

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Replace i just don't see the need

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suggestion
If it was an old car that has been sitting for quite some time it might assist in breaking down varnish or OLD oil residue that has thickened/sludged with time, but on an engine that gets regular use with consistent oil changes, I just don't see the need.
Original post Read captured discussion
Engine Flush - Liqui Moly

Replace oil

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster
I have a 2003 911 Carrera and I'm curious to hear what you think of adding the Engine Flush when you change oil.
Original post Read captured discussion
Engine Flush - Liqui Moly

Use with consistent oil

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
If it was an old car that has been sitting for quite some time it might assist in breaking down varnish or OLD oil residue that has thickened/sludged with time, but on an engine that gets regular use with consistent oil changes, I just don't see the need.
Original post Read captured discussion
Engine Flush - Liqui Moly

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Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

6 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Carpokes: 1 discussions

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POST 1 / ORIGINAL POSTEROriginal post

I have a 2003 911 Carrera and I'm curious to hear what you think of adding the Engine Flush when you change oil. I spoke with my mechanic, and he told me that it's not a good idea. According to him, it can affect the performance of your engine. There was an article in Jaguar World discussing this very subject and they had a different take. I also spoke with Downtown LA Porsche Service and they were more neutral. Question for the readers have any of you done this and what is your experience? Thanks, Darrill

POST 2Original post

Quotes source post: 39617

No personal experiences using any kind of engine flush and I don't know of anyone has done it. Even though it might not do anything detrimental, my 2¢ would be an absolute "no". I would never use something like that on a Porsche. Hopefully others here who have better knowledge will chime in. Moving on, welcome to Carpokes! We're glad you're here!

POST 3Original post

What problem are you trying to solve with the engine flush ?

POST 4Original post

I would be hesitant as what does the flush do to various seals in the engine, and if it was really important, I would expect some comment in an owners manual or service manual. I can't say as I've ever seen a race team or engine builder use it either. If it was an old car that has been sitting for quite some time it might assist in breaking down varnish or OLD oil residue that has thickened/sludged with time, but on an engine that gets regular use with consistent oil changes, I just don't see the need. Just my $0.02....

POST 5Original post

the data on their Amazon page indicates that the vehicle service is for bus or truck. In the description it mentions gasoline or diesel. Sounds to me like this would be for low stress truck engines. I would talk to your indie and see if he recommends something. I've only been driving Porsches for ten years, but have never used an oil additive.

POST 6Original post

Most engine flush products and most oil additives are just marketing. One of the best info resources out there is Lake Speed's web site - https://www.speediagnostix.com - and his YouTube channel: good analysis backed up by actual testing.

This is a source reference. Confirm exact model applicability in the original material.