So I've got a 93 Pathfinder, with 137k miles. I've been using Mobil 1 full Synthetic oil, a K&N oil filter (I try to get a Mobil 1 extended or Bosch extended).
I'm thinking about seafoaming the engine the next time I do an oil change. I've done some seafoaming on other engines in friends vehicles, but I'm always just a little testy when it comes to putting it in my engine.
Reason why I'm wanting to do it is to see if there is any improvement in MPG, power, etc.. as well as being able to clean out the engine. I know how to do the process... I just need to know if there are any negatives for this... as well as if there are any better products.
Plan is to suck in 1/3 through the vac line, then 1/3 in the crankcase, and the rest in the gas tank. Once I let it sit for awhile I'll go beat the crap outta it to get all the stuff out.
So, let me know if you think it's okay to do, or if you know of any BETTER products. I'm just looking for more engine power and more MPG's.