GC is amber after 5k miles????? Oh no, its suppose to be green. DRAIN IT Graphite oils are pretty scary looking even when new. Oil color doesn't give any info. "Oil profiling" will be made illegal if everyone continues to do so. Wheres the ACLU? No comment on Autorx. Like any product, follow the directions. If not, don't expect it to do what it is advertised to do. This goes for all available additives/flushes/cleaners on the market. Read the directions.