On my '03 GMC Sierra 5.3L with 126,000 miles, I am gonna put in a bottle of Techron Concentrate (12 gal. treatment) & a 1/2 bottle of Amsoil P.I. in a 1/2 tank of gas, which is about 13 gallons. Sound OK??
Then in a day or two, pour 1/3 bottle Seafoam in the Power Brake Booster.
After that, I'll change out the PP & put in a one time change to Q Torque Power I got cheap. Then go back to my PP or ASL routine after that...
The engine is running a tiny bit rough at idle, mileage is not up where it should be (about 16-17 now) and when I pulled my boat yesterday, I was only getting 10 MPG, which I usually get 12 MPG pulling the boat. I am gonna pull the boat about 550 miles this coming weekend & more after that...
I do have the original Spark Plug wires in it and should probably change them with Jegs (?).
The Iridium Plugs have about 45k on them.
One forward & one rear O2 Sensor have been replaced.
Sound good??
Chemical plan sound OK??
Anything else??
Then in a day or two, pour 1/3 bottle Seafoam in the Power Brake Booster.
After that, I'll change out the PP & put in a one time change to Q Torque Power I got cheap. Then go back to my PP or ASL routine after that...
The engine is running a tiny bit rough at idle, mileage is not up where it should be (about 16-17 now) and when I pulled my boat yesterday, I was only getting 10 MPG, which I usually get 12 MPG pulling the boat. I am gonna pull the boat about 550 miles this coming weekend & more after that...
I do have the original Spark Plug wires in it and should probably change them with Jegs (?).
The Iridium Plugs have about 45k on them.
One forward & one rear O2 Sensor have been replaced.
Sound good??
Chemical plan sound OK??
Anything else??