Engine flush? Sure why not!

[G0ALY]

I’ve had people recommend engine flushes, but I never do it. In fact, I need to change the oil in my vehicles soon… I do it 3 times a year. Right before winter, right after winter and mid-summer. I put about 8-10 thousand miles on the truck between oil changes. About 6 thousand on the wife’s van between changes. (They are both Chevys.)

The van has 180 thousand miles on it, and I turned over 305 thousand miles on the truck on the way home tonight… Neither vehicle has had any engine problems, so it seems to be working.

[CAP1]

I’ve had people recommend engine flushes, but I never do it. In fact, I need to change the oil in my vehicles soon… I do it 3 times a year. Right before winter, right after winter and mid-summer. I put about 8-10 thousand miles on the truck between oil changes. About 6 thousand on the wife’s van between changes. (They are both Chevys.)

The van has 180 thousand miles on it, and I turned over 305 thousand miles on the truck on the way home tonight… Neither vehicle has had any engine problems, so it seems to be working.

i had a 74 C-10 2 wheel drive. it had somewhere in the 270's when i bought it. it had just over 310k when i sold it. to the best of my knowledge, it's still running.

[DiabloTX]

I did this to my car at 60k.  Some people have had amazing results, some people, like myself, didn't see any difference.  Far cheaper than $89.99 at the jiffy quick.

http://www.ls1tech.com/forums/general-maintenance-repairs/534376-how-seafoam-your-car.html

[CAP1]

I did this to my car at 60k.  Some people have had amazing results, some people, like myself, didn't see any difference.  Far cheaper than $89.99 at the jiffy quick.

http://www.ls1tech.com/forums/general-maintenance-repairs/534376-how-seafoam-your-car.html

he's managed to incredibly over-complicate a very simple procedure.

first off, i've never found anything that you pour in the gas tank that actually works. a car dealer customer of mine says he's had good luck with ""lucas injector cleaner" although i haven't used it yet.

 the guy you linked does have the right ideas though. injectors do actually gum up after some miles. the best thing i've seen for that is the "motorvac". itg's a system that we use, where we disable your FI system entirely, and run your car on this machine. we use a mixture(very strong mix) of cleaner and gas. it runs for about an hour.....no smoke, just very nasty smell. it cleans the injectors, backsides of the intake valves(yes, they do accumulate a LOT of carbon), and the piston tops/combustion chambers.
 i get the best results on the GM v-6 engines. i don't actually feel too much difference on 5.0L fords or gm's, although i've seen seriously reduced emissions when i've tested em afterwards. hell, i had one customer, was VERY skeptical, but agreed to it. he came back the next day thanking me. his car was a 98 buick with a 3800 engine.
 for the throttle body, you can buy a spray that's made for that. you need to be careful though, as some of the newer engines specify to not use anything on the throttlebodys, as it will void your warranty.

 now....if carbon in the combustion chambers is ALL you're worried about? water. dribble water down the intake. it'll boil in the combustion process, and literally "cooks" the carbon away.

customer inbound........that's it for now........

<<S>>

[SirLoin]

I do my own engine oil flush every once in a while.After i drain the old oil,i put 3 quarts of new oil in.Do a short hop in the car,drain and fill again.The oil on the dipstick is the same colour as from the bottle then.