How to Seafoam your vehicle (Also called Top Engine Clean)
This is a carbon deposit cleaner that when used can help eliminate the carbon deposits that build up in the top end of your engine block. I perform this about every 15,000 miles on my own vehicle.
Steps to seafoaming:
1. Bring your vehicle up to normal operation temperature
2. Separate seafoam canister into 3 equal parts (one will be for sucking through a pvc line or brakeBooster line, one for gas tank, and one for putting in the oil filler cap)
3. Locate the PVC valve that runs through the intake manifold, for this is where you will initially suck 1/3 of the seafoam canister through.
(If PVC is non accessible then you can use your brake Booster line in the same manner.)
4. Once engine is at normal operational temperature, have another person sit in the drive seat and bring the engine RPM up to around 1500.
5. Pull your PVC off (or brake Booster line) and start slowly sucking 1/3 of the seafoam in through either of these locations. Be cautious & steady handed, you don't want to stall the engine out.
6. Once you've sucked all of the 1/3 portion up turn the engine off & replace pvc or brake Booster to its original housing.
7. Once engine is off, unscrew your Oil Filler cap & pour 1/3 of the seafoam in as if it were oil.
8. Unscrew gas cap and put the remaining 1/3 seafoam in.
9. Leave the car alone for 15 minutes.
10. Come back to the car and start it up, let it idle for about 10-15 seconds and then BRING ENGINE RPMS TO A STEADY 2000-3000RPM for no more than a couple minutes.
(major revving or fluctuation can knock carbon deposits loose so please keep a steady foot)
11. Once this is complete, take your car for a 10-15 mile drive, while doing so make sure to bring the engine through its total rev band spectrum to make sure all the carbon deposits have been cleaned out.
12. Once the drive is complete, bring the car back home.
13. CHANGE YOUR OIL & FILTER & SPARKPLUGS WITH KNOWN GOOD OEM SPEC PARTS.
(The reasoning behind this is that the seafoam lowers the viscosity of your oil, thus weakening its ability to control wear on your engines major mating surfaces and your plugs get buggered up with carbon after this tuneup due to the carbon coming loose during the tuneup.. So an Oil/Filter change & Spark Plugs are a must after seafoaming is complete
14. Tune Up is complete!