Permatex Ultra Slick Item#81950
Used this stuff while reassembling the engines, as intended. Also to lube some things here and there, like ratchet mechanism for example, or door hinges, etc. Heard of some using it as gun lube.
But today met an old timer who keeps a bottle of it specifically to add into the engine at every oil change. He takes it to an Indy for an oil change, and adds this bottle on same day to new oil.
Obviously IT IS meant for engine internals. But, aside from the cost, are there any downsides to running it long term like he does? When used during rebuilds - it's usually on a short break-in OCI anyways. But here it's in the engine for a full 5K OCI, and that guy gets an oil change 2-3 times per year.
He said he's been doing it since new, car is close to 150k, no known issues yet. So is it safe to say it helped the oil or the engine in any way? Or provided no benefits and just contaminated the state of the art cheapest motor oil from a drum?
The old timer likely won't change his mind even if I give him reasons not to use it in the engine, because there are no precautions on the bottle against constant long-term use. But it still "grinds my gears" as to what's in it and what are the potential/theoretical PROs/CONs of using that assembly lube the way he does.
Used this stuff while reassembling the engines, as intended. Also to lube some things here and there, like ratchet mechanism for example, or door hinges, etc. Heard of some using it as gun lube.
But today met an old timer who keeps a bottle of it specifically to add into the engine at every oil change. He takes it to an Indy for an oil change, and adds this bottle on same day to new oil.
Obviously IT IS meant for engine internals. But, aside from the cost, are there any downsides to running it long term like he does? When used during rebuilds - it's usually on a short break-in OCI anyways. But here it's in the engine for a full 5K OCI, and that guy gets an oil change 2-3 times per year.
He said he's been doing it since new, car is close to 150k, no known issues yet. So is it safe to say it helped the oil or the engine in any way? Or provided no benefits and just contaminated the state of the art cheapest motor oil from a drum?
The old timer likely won't change his mind even if I give him reasons not to use it in the engine, because there are no precautions on the bottle against constant long-term use. But it still "grinds my gears" as to what's in it and what are the potential/theoretical PROs/CONs of using that assembly lube the way he does.
