So i was going through videos on YouTube and saw a bunch of cars using seafoam, and generally all of them were positive, it helped the engine run smoother, better MPG, so on. I tried searching the 7th gen forums but I didn't see anything on seafoaming our Maximas. Has anyone done it? If so, did you notice a difference?

 

Seafoam is vastly overated. Iv used it twice in two different cars (07 mazdaspeed and 02 eclipse). Yes it made a nice smoke show, but i didnt notice any benefit after using it. First off, If your using high octaine gass like 93 or 91 (as you should be) this product is a waste of your time as its main benefit is to clean out carbon deposits (mostly created by sh#ty fuel or running rich like turbo motors do)...thats what gives you that thick black smoke when you step on the gass using seafoam. Second, our 7th gen cars our only as old as 09, so i cant picture a lot of carbon build up on a car thats no older then 4 years old...maybe if you had like 100,000 miles on you car u would see minor results.and i mean minor

And just so u know, i put it in the gass tank, and vanccume line. I never put it in the crank case(where u put in your oil) because seafoam is not motor oil, and always thought it was dangerous to my motor.I can assure you nissan did not intend for seafoam to be lubricating your connecting rods,bearings and pistons....

just my 2 cents..do what you want

 

Word to the wise. "If it isn't broken don't fix it". I have seen many good intention go bad. Seen similar comments from owners wanting to use different transmission oil that Nissan required for CVT.

 

I have used this on my motorcycles and carb Mustang and it made a great difference. It really dislodged gunk in the carb. That being said I love it on the carb motors, however I don't think I would run through FI.

 

Ghozt ran seafoam when his max was having knocking issues though it is unclear what "fixed" the issue.

The stuff works but I agree with if it ain't broke, don't fix. But hey, if you've got the luxury to try things, go for it. No guts, no glory. Just be smart about it.

 

I used Seafoam in my 2002 Honda S2000 and wrecked the motor, rod shot thru the block, that was not fun, not sure if there were some other issues that the seaform just put together or what, but just beware!

 

Yup, iv heard of that engine failure on a few different car forums. Along wih fouling up your plugs, and messing up your cats and throwing engine error codes.....if you have a turbo motor/old carb motor, or a ton of miles on an engine thats been using crappy gass i can see it helping. Otherwise id stay away from seafoam......again this is just my oppinion.im sure others will tell you im dead wrong so just do what u think is right.

 

It actually worked really well in an older Saturn that I used to have. The car actually ran a lot quieter and smoother. Tried it in another car a few years later, and no difference. Just make sure to change your oil right afterwards.

 

Combined mileage on my vehicles of over a half million, and a combined age of 36 years and no Seafoam ever used.

 

Wow good thing I posted before I did anything, I figured there was a reason no one really talked about it on here.

 

I wouldn't do it but that's just me.