RE: Dissapointed in OS service
Regardless of what happens with OS service, RUST is not a manufacturing defect and there for not covered by warranty, regardless of how much ARO is used. Rust is just a normal occurence in our model engines as the ingredences used in the fuel are HYDROSCOPIC, and as Cool Power has stated that petroleum based ARO will not mix with the fuels or nutralize them against rust. You will be supprised how many ARO have a base product that is a petroluem product. The best way to help protect agains rust is to add a couple of Oz of caster oil your fuel when you get it home and run the engine out of fuel after the last run of the day while the engine is still hot.
Cheers