After Seafoam MPG decrease dramatically?

[Ralphie]

OK last oil change i did just the fuel treatment.

Ran better and had more pickup.

Then 2 weeks ago i had the time and place to do it so i did the BBL treatment. I followed a write up on here and added a 1/3rd of the bottle to the line. I tried not to let it stall but it did but it didnt hurt it(at least not that i know) I let it sit for 5 mins and she started right up, a lil hesitant, but she did and she smoked but honestly not that much....a few puffs and that was it.

So ive noticed since then that my MPG has decreased a lot. Before this a half a tank would last me a week or more now it lasts me like 3 or 4 days.

I dont have any leaks lol.

Im thinking maybe some gunk got caught in the injectors?

Maybe i need to finish the process and clean other things such as the fitv or pcv?

Any help would be appreciated....

next oil change im doing the crankcase treatment!

[SN2BH22CB7]

Ralph my man.....for starters...you were suppose to let it sit for 10-15 minutes...not 5 minutes...you have to let it marinate to clean the intake valves and piston rings...BEWARE: if you have a high mileage engine...CLEANING it with SEAFOAM could harm it...WHY you ask?? because the carbon buildup itself is PROBABLY whats keeping the compression stable and keeping it from having blowby and burning oil...

but you were too anxious on using that seafoam wasn't you?

you have to let it marinate mayne!!! trust me....if thats your first time seafoaming it...it should have been WAY MORE SMOKE than what you stated!

[Ralphie]

Well i mean i did let it sit for like 10 mins i was just trying to get to the point lol...

it was longer then 5 mins but yea i mean it didnt smoke at all hardly...

and i know about the high mileage but CP[Mike] did his cb at 200k and hasnt had any trouble so maybe im just retarded.

[SN2BH22CB7]

Well i mean i did let it sit for like 10 mins i was just trying to get to the point lol...

it was longer then 5 mins but yea i mean it didnt smoke at all hardly...

and i know about the high mileage but CP[Mike] did his cb at 200k and hasnt had any trouble so maybe im just retarded.

no dude, you aint retarded.......do everything..you already added it to the vacuum line...cool...you already added to the gas ( gas tank )..now its time to add it to the oil!

it will clear out...trust me!

but yeah...I used a double dose....seafoam and Lucas fuel treatment ( small bottle ) and this baby purrs!!!

[Ralphie]

True well i guess when i do the crankcase ill change the oil and clean some of the valves and stuff too.

I havent heard anything to good with Lucas...there is a thread on here that shows proof that it makes you oil really mucky....

[SN2BH22CB7]

True well i guess when i do the crankcase ill change the oil and clean some of the valves and stuff too.

I havent heard anything to good with Lucas...there is a thread on here that shows proof that it makes you oil really mucky....

thats only the Lucas Oil stablizer....NOT the fuel treatment!

I remember when I used Lucas Oil stabilizer in this thing a while ago...it made it run so much better....but after reading about it...I stopped using it



but yeah..that lucas fuel treatment is some ok stuff

NOW, this ...I want to TEST..and see how well it holds up!

http://www.evergreenamerica.com/ProductsMotorSilk.cfm

[SN2BH22CB7]

http://www.evergreenamerica.com/Applications.cfm

the claims:

OVERALL PERFORMANCE APPLICATION DATA-

Reduce friction heat 40-50%
Reduce friction 80%
Reduce wear 90%
Reduce (energy) fuel usage by 20%+
100% anti-corrosive
Biodegradable
Reduce emissions by 50%
Reduce component failure by 70%
Reduce repair and warranty expense
Increase power 6-8% (more horsepower)
A solid and permanent boundary lubricant
Extreme pressure/Timken loads

[Ralphie]

Well she runs ok, she still idles rough but i think thats because i need new motor mounts, a new alternator and to clean a bunch of shit.

[SN2BH22CB7]

Well she runs ok, she still idles rough but i think thats because i need new motor mounts, a new alternator and to clean a bunch of shit.

well..what are you waiting on? christmas? what else are you gonna clean mayne?

OH shit...get some of that DEEP CREEP....that seafoam makes...NEVER used it before..but I have heard it works GREAT...I think Mike used it ( CPMIKE ) PM him and ask him about it

[wed3k]

and you changed the oil, plugs,o2 sensor and the such?

[TheNextAZN]

1/3 of the bottle into the lines? ,. .. lol.. i did 2/3's into the line and 1/3 into a half tank of gas. u Might wanna check/replace the o2 sensor though.

[SN2BH22CB7]

I got something...I was reading....the Seafoam bottle....they say...you can ALSO dump the entire can into the fuel tank! ( 1 pint ) to treat 8-25 gallons....Hmm ..we have 17 gallon tanks...so, I figure...instead of doing the vacuum hose treatment...just dump the entire can into the tank!

thats what Im thinking of doing! ....

NOTE: the can I have is 16 FL OZ / 1 pint ) treats 8-25 gallons...( we have 17 gallon tanks ) SOOOO..just dump the entire can into the tank!.

it will:

clean injectors
clean carbon as you drive
lub upper cylinders
removes moisture
conditions fuel

so....you can't go wrong with doing that route either!

but do clean the intake...you might want to do the brake booster hose treatment ( 1/3 )

if you're engine is OVER 200K BEWARE: use at your own risk...some other cb7 owners MIGHT be lucky...might just be your luck....you use the seafoam...to clean out the carbon inside the intake mani...and such...then you notice...it starts running funny and burning more oil!

like many has stated...that carbon buildup MAY just be whats KEEPING your car running correctly if you have in excess of 180K

so if you're up there in mileage...USE WITH CAUTION....its a 50/50 chance...when you seafoam your engine....you may just UNCOVER other problems that laid dormant for a long time!.

[wed3k]

I got something...I was reading....the Seafoam bottle....they say...you can ALSO dump the entire can into the fuel tank! ( 1 pint ) to treat 8-25 gallons....Hmm ..we have 17 gallon tanks...so, I figure...instead of doing the vacuum hose treatment...just dump the entire can into the tank!

thats what Im thinking of doing! ....

NOTE: the can I have is 16 FL OZ / 1 pint ) treats 8-25 gallons...( we have 17 gallon tanks ) SOOOO..just dump the entire can into the tank!.

it will:

clean injectors
clean carbon as you drive
lub upper cylinders
removes moisture
conditions fuel

so....you can't go wrong with doing that route either!

but do clean the intake...you might want to do the brake booster hose treatment ( 1/3 )

if you're engine is OVER 200K BEWARE: use at your own risk...some other cb7 owners MIGHT be lucky...might just be your luck....you use the seafoam...to clean out the carbon inside the intake mani...and such...then you notice...it starts running funny and burning more oil!

like many has stated...that carbon buildup MAY just be whats KEEPING your car running correctly if you have in excess of 180K

so if you're up there in mileage...USE WITH CAUTION....its a 50/50 chance...when you seafoam your engine....you may just UNCOVER other problems that laid dormant for a long time!.

the amount of carbon cleaning wont be as effective unless you are constantly reving the engine up high because it has the run hot.

my friend sprayed a bottle of water while i was reving his camaro from 3.5k to redline. you shoulda seen all the carbon on the floor after the exhaust pipe.

[Ralphie]

OK so O2 sensor...

i changed plugs and oil....but havent changed the o2 sensor...damn im an idiot.

And yea i didnt wanna use a whole bottle...im just gonna change my O2 sensor and clean out my crankcase and see where im at, but she has no leaks to date!

[addict_cb7]

What Does Spraying The Engine At 3.5k Rpm Have To Do With Carbon Buildup?