I understand the procedure, searched it and seen different outcomes.... and all that good stuff.
Now the PO said he used synthetic oil... for how long who the **** knows.... i currently run the car on regular castrol 10w-30.
Now since the PO ran the car on syn for 1 or more years, would the carbon build up be too great to cleanse with water treatment, causing large pieces to get caught and cause damage to the apex seals? Now i know it seems like ive answered my own question but would still like some input...

Thanks

 

There is nothing wrong with synthetic oil.

 

doesnt it cause more carbon build up? ive heard better synthetics wont but i have no clue what the guy used... and the old plugs i pulled look horrible...

 

I have heard pro's and con's of using synthetic and the only good argument I see is that MOST synthetic oils have a higher "flash" point, meaning the oil itself burns at a higher temperature than conventional oil. This would mean supposedly more oil residue would be left over in the engine.

That being said, I think it was only some of the racing synthetics like royal purple who claim their synthetic doesn't suffer from the high flash-point and do burn up like conventional oil. There might be others but I haven't look into it much.

Regardless, carbon is very hard to remove. I would say don't worry too much about it and just make sure to REALLY drive the car once in a while. Run a water treatment, tune-up, and call it a day. If there is build-up already which is inevitable, there is not much you can do to clean it out besides running at WOT for long periods of time.

 

you should be ok, i dont think carbon deposit will break off in chunks in that sense.