OK, one may not have anything to do with the other but thought I'd ask anyway
I rarely get to make many highway runs so thought I'd do so today and the RPM gauge caught my eye. In the past running at 60 mph = 2700-2800 on the RPM gauge, but now the gauge is a steady 2200-2300, I have to hit 70 mph to hit the 2700-2800 mark. Didn't know if this was the Rx doing its job or a pending problem. of another sort.
I would say this is auto-rx doing its job, the engine is cleaner and oil is getting everywhere, so the engine is not having to work as hard. How far are you along on the Clean Phase.
I would say this is auto-rx doing its job, the engine is cleaner and oil is getting everywhere, so the engine is not having to work as hard. How far are you along on the Clean Phase.
A little over 1300 miles, this whole process has taken almost 2 years
I would say this is auto-rx doing its job, the engine is cleaner and oil is getting everywhere, so the engine is not having to work as hard. How far are you along on the Clean Phase.
A little over 1300 miles, this whole process has taken almost 2 years
I would just keep driving and get this Clean Phase over with and then go onto the Rinse Phase. I would not worry about anything, just keep driving.
I'm not saying Auto-Rx isn't doing it's job but regardless of how clean your engine is, the RPMs on the highway are almost always going to be the same at the respective speed. Manual transmissions provide a direct link between the engine and output shaft when engaged so once in a gear X RPM will always produce Y speed. In the case of highway driving in the Overdrive gear, say an RPM of 2000 gets you 70MPH. That will be the case regardless of how hard the engine working. If the engine is working harder it will require more throttle to maintain the same RPM, but will not increase RPM.
Now I described a manual transmission above, but alot of users here, and maybe even yourself, has an automatic transmission. Automatic transmissions are made possible by using a fluid (Automatic Transmission Fluid) as a medium to transfer energy from the wheels to the output shaft so the transmission can be in gear while not moving and the engine not stall. This creates a loss of RPMs between the engine and the output shaft (in addition to the effect of the appropriate gearing) due to the mechanical loss of energy in the fluid as friction and heat. But in most modern automatic transmissions, a lock-up clutch is used when the Overdrive gear is engaged which turns the fluid drive system of an automatic transmission into a mechanical linkage providing the same efficiency as a manual transmission. The means that while at speeds usually around 40MPH and up the RPMs should never increase or decrease based on the cleanliness of the engine for a given speed.
With that said, I do not know what kind of car you drive, how old it is, or anything of that nature. If you do have an older car with an automatic transmission, it may not have a lockup clutch. If it does, and you are using Auto-Rx in the transmission as well, then this may be the result of the lock-up clutch functioning better than previously. If neither of those are the cases, and you didn't change tires or gearing, then perhaps your prayers paid off :)
Again, not saying Auto-Rx isn't doing it's job. I use the product and have seen great results and will continue to use and support it. Just wanted to share the reason why I believe the original assumption was incorrect, and not by any means saying I am correct. Just throwing out what I believe based on what I know.
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Your doing fine, can you tell us what the year, make, and model of the car you are driving as well as what type of transmission you have, manual or automatic, this will help us help you out.
Your doing fine, can you tell us what the year, make, and model of the car you are driving as well as what type of transmission you have, manual or automatic, this will help us help you out.
02 Dodge Stratus R/T:
70,000 miles 4 speed automatic..(Mitsubishi) Mitsubishi V6, 3.0
And I used Auto-rx on the trans about 2 yrs ago.
-- Edited by john1782 on Friday 1st of May 2009 06:09:06 PM
