engine gunks like prolong for real?

[SuperCyrix]

All the wierd stuff they advertise on TV like Prolong etc...
Today I saw another one call Z something. What's your opinion on additives?

 

[Lvis]

I think if they really worked, pennsoil, quakerstate, etc. would be putting it in their oil.

 

[JohnnyKnoxville]

Look in the owners manual for your car.The factory does not recommend additives for most cars.
Spend your money on girls instead.

 

[woodie1]

Like was said above, if they worked the major oil companies and auto manufacturers would use them.

 

[goodoptics]

<< Spend your money on girls instead. >>

True.