TCP FUEL ADDITIVE
Lycoming, Continental, Hartzell, McCauley, or any broad spectrum drive system component used on multiple type.
Continental O-470R, 100LL Fuel
Has TCP helped to maintain specially valves and seats cleaner from white deposits?
Last edited by
[email protected] on Tue Oct 07, 2025 8:28 am, edited 1 time in total.
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Any downside of using it besides its chemical dangers to humans?
i.e. Fuel bladders, gaskets etc...?
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I have used it in my 180 with pponk 470 as it tends to have lead buildup due to being operated high and cool for most of the flying we do. After a year the valves/heads seem to have improved. No fuel issues
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silflexer offline
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silflexer wrote:I have used it in my 180 with pponk 470 as it tends to have lead buildup due to being operated high and cool for most of the flying we do. After a year the valves/heads seem to have improved. No fuel issues
What color of buildups did you mainly have and went down?
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First question you should ask: "Is TCP an approved fuel additive by the manufacturer?"
Second question you should ask, if it's not: Don't "advertise" on social media.
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mtv offline


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mtv wrote:First question you should ask: "Is TCP an approved fuel additive by the manufacturer?"
Second question you should ask, if it's not: Don't "advertise" on social media.
If you mean approved by Continental I don't think they have done its testing.
The product is advertised as FAA approved for specific non-turbocharged Lyc. Cont. and Franklin engines.
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