Underbody rust prevention

[quote=“Bigairskier1580,post:8,topic:32966"”]

FTMFW is the general consensus here?

Any naysayer or anyone with negative feedback on the topic?

There is a small amount of rust on the inside of the lower door sills (prone and common spot on Subarus) By doing the treatment, would I run the risk of accellerating the rust in that area? Or would it help and actually slow the process.

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IT WILL slow the process. but not stop it once it has begun.

as long as you dont plan on working anywhere near the underside of the car in the future… i would suggest it. If i ever bought a new car i woudl get it at day one. but the OILY mess it makes for simple stuff like installing a trailer hitch & changeing an exaust. makes it a HUGE PITA unless you like to look like a diesel mechanic.