IT CLEANS--- Motor Medic Motor Flush

ETF,
- Thanks... sorry i meant to say cold oil dip stick check.
- In "general" I would disagree w your statement of chemical use in stripping internal bits. No matter what age of car, I estimate, if it reduces grime, debris and carbon buildup, then the Prius wins. No matter if its in your engine, inside your cabin, on your tires, on your car exterior, or in your exhaust....
- sorry if it wasn't clear that i ALREADY opened up the valve cover [to replace the gasket]; noted in pics. Thus why I am more urgent with cleaning the engine compartment. I wouldn't get this aggressive with my other 2 Prii at ~120k. This Prii engine NEEDS an enema for the excessive carbon buildup.

 

OK Team,
Update 1.5 months & 1000 miles later. This stuff is excellent (reminder current 2005 Prius is at 248k miles)!
-THROTTLE. Pedal depress for throttle is SIGNIFICANTLY MORE responsive; both from stop at intersection also punching it on highway from a 55mph cruise. I wouldn't say my Prius overnite changed into a Mustang, but notably different throttle feel than before without Motor Medic.
-INCREASED FUEL EFFICIENCY. Now this could be a mix of bunch of factors. In the last month I've changed: all 4x tire pressure up from 35psi to 40psi; dash read of low 30miles/gal to now consistent 38miles/gal
- IDLE. Sitting idle at stop light is same-same.

Overall seems the engine is cleaner. Im using this on my other 2005 Priusw 140k miles--- Im sold!!

 

SFO,
OK came from outside about your task. Here's a bad snap shot of a healthy cold oil dipstick check. From my vantage point the oil is still golden and where i left it 1.5 months ago. No evidence of burn, thus far. More follow-on reporting next month. Perhaps the 2005 Prius prefers the Kansas City air over VA's?!

 

EdtheFox5,
Not at all; i have a good amount of thick skin.
I really appreciate the insight from Pros such as yourself.
I got this car in APR17 with the knowledge that it had a TON of issues, for just over $1000. I get a lot of "problem solving" therapy from the tinkering and escape from my daily grind at work. I aim to do all the maintenance myself; and this Prius is the laboratory for my outlet. The feedback from you and others seemingly tell me that i may need to consider when to hang it up for the car and/or perhaps keep some of my experimental antics internal; as my experimenting may be unnerving to some.

cheers,
Angie

 

UPDATE-CORRECTION.

I just filled up at the gas station and its official, 44mpg avg for my last tank of 337miles for 7.53 gals of petrol. This tank was the first full gas tank post-MMMF procedure, and i always use the cheaper gas ~87octane. Looks like there are a minimal of 2 factors skewing my data:
1- INACCURATE MDF. My MDF is inaccurate and short by ~15%. My MDF currently reads ~38mpg avg for this last tank. Since car acquisition in APR17, I have always-only relied on the MDF as a mpg ref; so seems I have been off from the get-go. So in actuality perhaps worst fuel consumption was never as bad as 25mpg but perhaps low 30s mpg.But when I just topped of with fuel and recrunched the numbers, ACTUAL consumption rate was 44mpg avg. My driving has always been consistently a mixture of mix city-hwy.
2- TIME SINCE MMMF PROCEDURE. Also the last mid fuel fill-up was when i conducted the MMMF procedure. As we have noted more time after procedure will better tell of actual affect. Also, its been 1.5months since the MMMF procedure and I regularly shift my driving between this and my other 2nd Prius.

SUMMARY. My 2005 Prius fuel efficiency is back to good health at 248k miles, likely due to all my initial car nursing maintenance since APR and not due to the MMMF. As ETF5 and audience alluded, the tire inflation from 33psi to 40psi was primary reason for ~20% increase in fuel efficiency. Now, it still is conclusive that MMMF extracted a good amount of engine carbon buildup, but the quicker responsiveness to gas throttling "could" be all in my head. Thanks all, for helping out in thinking this through!

 

Today I just filled up at the gas station proving a better MPG rating, going from 44MPG to 47.6mpg avg for 305miles; 6.4gals of 87octane petrol; car mileage from 248,301 to 248,606. In this used tank I also added Chevron fuel injector cleaner; don't know if it affected the mileage, but I estimate that Prius has now settled in to its top mileage rating capacity now at 47.6mpg avg.