Engine Cleaning Additives?

[pixelparadigm]

Can a dramatic effect be felt after using these engine cleaning additives, especially if the engine has already ran 100K+ Kms?

[bluntman]

Better performance, cleaner emissions, better fuel economy. Not as good as when the engine was brand new, but better than before the cleaning.

[pixelparadigm]

If there are tangible results then... can you recommend any additives that might suit my old engine?

[speedyfix]

hardly any of these additives work... i would spend my money somewhere else.

assuming you perform regular change oils, your engine should still be clean even at 100k kms.

[1D4LV]

imho. no need to add engine additives. the engine oil that we use has that component. waste of money lang sya.

ang sagot dyan is regular oil change.