I'll be lucky to put 1,500 miles on my car in 6 months and I'd rather not wait that long in between oil changes. Would doing the cleaning phase twice..(two 3 month periods) be ok?
Yes as you will get a total of 1500 miles remember John Auto-Rx works slow as it is the only way to clean safely (no particulates to stop up an oil screen or piston) good post.
I have taken a part all the oil filters after auto rx treatments. (4 cars). I have also inspected under the valve covers.
Unlike others, I have yet to find a clogged filter. I agree with Frank, that auto-rx slowly disolves sludge. When you touch it on the engine or filter, after-during treatment, it doesn't feel like sand. It's sorta gooey tar like.
I would not bother changing your oil until the 1500 miles are up. You have to give auto-rx time to work.
I will bet you check your dip stick a lot during those 1500 miles.
