I know everyone is all giddy when they first try it and say they feel all kinds of differences and improvements. But, now that you've had a couple weeks/months to actually notice long term improvements, what have they been (if any)? Any actual degradations from using it? I'm talking anything ranging from better gas mileage, to running smoother, to the car just feeling better in general (mentally). Post 'em up!

 

I used half a can in my crankcase, but I'm still leery of doing the "Suck into the engine" thing.

Oil was black as the pits of Hell when I changed it after doing the Seafoam (drove for about 150 miles), but it's still a dark amber 200 miles after the new oil went in. Pre-Seafoam, the oil would be dark even 10 miles after a change.

 

WTF is seafome?

 

https://ls1tech.com/forums/showthrea...hlight=seafoam

And now that I looked at where that sticky is, this may be in the wrong section...

Here it is where it should be, in the general maintenance section... use this one instead...

https://ls1tech.com/forums/general-maintenance-repairs/643163-post-up-your-post-seafoam-gains-improvements.html

(mods feel free to move/merge at your leisure)

 

Why leery? We do this @ the dealer w/GM Top engine cleaner & water. Thousands have put seafoam through the Vaccum Hose & been sucessful. Id personally be more leery of putting it in my crankcase, but Ive done that too

 

My bro did it to his T-Bird & we think it may have clogged the cats!! Ive done it on both my LS1 Fbodies w/ success, 2 of my old Full size Chevy trucks and also both of my third gens. Im a believer in this stuff!!

 

Can't say that I ever really noticed any difference. It was cool to see all the smoke, though.

 

Yeah I'd say I've seen no difference, but that's the point. No difference means I'm getting the crap out and the car is running like it should.

 

smoother idle

 

A bit smoother of an idle, oil was sooooo black, but i just feel better seein all that blue smoke comin out the rear end.