Sorry I have no pictures or compression test results or any proof, but heres my experience with autorx:
My car is a 1994 toyota corolla DX, with the 1.8l 7AFE engine. I bought at 125k miles, from a woman who didnt neglect it. She got changes ranging from every 2500-3500 miles, at jiffy lube, lube-it-all, and various other chains. When I replaced the valve cover when I got the car, it looked very clean. But I decided autorx couldnt hurt so I tried it out. Plus I was burning a quart every 1k miles.
Ordered 3 bottles back sometime in october or november. As soon as they came in, I poured 8oz into my engine. I ran it hard for the next 1500 miles, wanted to really clean it out. Took no short trips during that time, all miles were highway with the engine warmed up and kept around 4000rpm.
I did notice during this time within 200 miles the oil was very dark, which never happened before. Oil used was... gtx or havoline, I forget which.
Drained out, put in quaker state synthetic for the rinse phase, ran 2000 miles.
Then I put a whole bottle (12oz) into my 4 quart sump. Ran it for 1500 miles, mostly highway once again, then poured out. Now im running quaker state torque power synthetic for the rinse phase.
My results:
Engine power has not improved, still feels the same.
Im still getting the same MPG I was before putting autorx in.
1,000 mile 1 quart consumption is still there.
Engine has gotten a little nosier, I notice a new harmonic at a certain engine rpm. And overall the engine sounds nosier from the outside. This could be from cleaning, I guess, but this is the only thing that has changed.
I havent looked under the valve cover, but im not expecting it to look any different anyways.
Overall i'd recommend if you give your car good OCIs and it runs strong, you probally dont need autorx. Still not sure what to do with the extra bottle of RX, and no I wont give it to you
But then again this was only the result on my engine, it might vary, maybe it'll help a nissan or ford 1.8l with the same mileage and OCI. Just posting this so you can help form your own opinion.
My car is a 1994 toyota corolla DX, with the 1.8l 7AFE engine. I bought at 125k miles, from a woman who didnt neglect it. She got changes ranging from every 2500-3500 miles, at jiffy lube, lube-it-all, and various other chains. When I replaced the valve cover when I got the car, it looked very clean. But I decided autorx couldnt hurt so I tried it out. Plus I was burning a quart every 1k miles.
Ordered 3 bottles back sometime in october or november. As soon as they came in, I poured 8oz into my engine. I ran it hard for the next 1500 miles, wanted to really clean it out. Took no short trips during that time, all miles were highway with the engine warmed up and kept around 4000rpm.
I did notice during this time within 200 miles the oil was very dark, which never happened before. Oil used was... gtx or havoline, I forget which.
Drained out, put in quaker state synthetic for the rinse phase, ran 2000 miles.
Then I put a whole bottle (12oz) into my 4 quart sump. Ran it for 1500 miles, mostly highway once again, then poured out. Now im running quaker state torque power synthetic for the rinse phase.
My results:
Engine power has not improved, still feels the same.
Im still getting the same MPG I was before putting autorx in.
1,000 mile 1 quart consumption is still there.
Engine has gotten a little nosier, I notice a new harmonic at a certain engine rpm. And overall the engine sounds nosier from the outside. This could be from cleaning, I guess, but this is the only thing that has changed.
I havent looked under the valve cover, but im not expecting it to look any different anyways.
Overall i'd recommend if you give your car good OCIs and it runs strong, you probally dont need autorx. Still not sure what to do with the extra bottle of RX, and no I wont give it to you
But then again this was only the result on my engine, it might vary, maybe it'll help a nissan or ford 1.8l with the same mileage and OCI. Just posting this so you can help form your own opinion.
