We all want too get fast results with auto-rx, the problem is that this may take sometime and miles. Many people have used cars that they have bought so the maintenance history may be unknown.
Realistically a person who buys a new car and holds onto it for a few years and then sells it may not take car of the car as well as someone who buys a new car and holds onto it for a long time.
I started auto-rx in my El Camino at 343,000 miles and I now have 372,000 miles. I have done 3 Clean and Rinses and I am now doing the Maintenance Dose at each oil change. I would have to say that in the last 5000 miles that this car has been running fantastic.
It is realistic that if you have contaniments in your engine that it will take some miles to clean everything up, I have been doing the auto-rx thing for 29,000 miles.
I would say that a realistic scenario is to take your current mileage on your car and divide it by ten.
In my case 343,000 miles divided by ten would be 34,000 miles.
If you have 100,000 miles then it may take 10,000 miles to clean everything up.
If you have 200,000 miles then it may take 20,000 miles to clean everything up.
If auto-rx can clean a small block chevy with a carburetor up then it will be no problem cleaning up a newer car that has fuel injection.
Before auto-rx I had seriously considered a new engine for my El Camino but now I plan on just keeping this engine on the car since it runs better now than it did before auto-rx.
I do not know of any small block chevy's out there that have 372,000 miles. This engine does not smoke on startup or leak and consume any oil. I have read of many small block chevy's that have had these problems at about 200,000 miles or less.
My engine was doing these things before auto-rx, since auto-rx these problems have gone away. I remember before auto-rx having to hit the accelerator hard to get the car up to 40 to 50 miles per hour, if I do that now the car is almost up to 65 miles per hour. Basically I have to take it easy on the gas peddle now.
Follow the application instructions for the Clean and Rinse Phases and then go onto the Maintenance Dose and you will not be dissapointed.
I would think this is a fairly good guide. But many cars get alot of easy highway miles during their useful life. Others see alot of short trip driving. So to base the contamination level based on mileage is not real accurate. Other factors such as oil change intervals and other normal maintennance such as tune up parts, air filters, PCV valves, all contribute to the overall deposit formation over the years. Also some motors are easy on oil, others being sludge proned, especially small displacement turbo equiped motors. At the end of the day as motors become more sophisticated, with variable timing, etc., the need for keeping the internals clean becomes more important.
Richone, is 100% correct in his response, I am giving my thoughts on a car that has a carburetor which is not as efficient as a fuel injected vehicle.
When I was doing my Clean nad Rinse Phases I made sure I did no short trip driving and in the spring through early fall I used to take the car out at night for a few 50 mile runs.
My thinking is that someone who purchases a used car should consider that the important maintenance items like:
These things may have been done or as in the air filter and PCV Valve they might never have been touched.
I am trying to lay the thought that auto-rx user's should not expect results in a short time since the internal condition of the engine is unknown unless they tore the engine down.
