Oil Additives??

[kingranchdude]

I'm looking for everybody's two cents on oil additives like Lucas or Slick 50. What's the deal with this stuff? Any good? Colossel waste of money? I had an Olds Cutlass in my teenage years that I would swear ran better because of Slick 50 but then again, I was only 16. What do you guys think?

[SJG 6.0]

2003 6,0, I change oil every 5,000 or so with rotellat 15w-40 and drive it-I dont know enough about additives to say its a waste of $$$ but my truck does fine without additives. I do run some dieses kleen (white bottle) In the fuel about every other tank or so to help with gelling issues and to provide lubricant to the injectors, there have been questions if the new low sulfer fuels provide adequate lube for the injectors.

[Lone Ranger]

Let me qualify my answer...
I am on my third Ford Crew Cab 4x4 diesel...

I had a 7.3 non PSD in 1993 F-350, a F-250 2003 7.3, and now my latest and greatest a 2006 F-350 6.0 King Ranch Crew Cab 4x4 loaded with Goodies, Pro-Comp, Edge, Warn, more than you want to hear about...

I have had cars since the 60's and my first 56 Chev sort of poor mans hot rod.

On an old gasser, worn low compression gas engine clunker.... Fine, maybe does some good...

On a tight tolerance high compression diesel like the PSD???? NO WAY, CHANGE THE OIL FREQUENTLY, BUT IT IS ALREADY A LONG LIFE ENGINE, DON'T MESS WITH A GOOD THING...!

You chance ten time the risk of messing it up, to doing it any good. Those additives, other than benefiting the seller, are not much good except for maybe clogging up the leaking rings in a worn out gasser...

Now additives in gear boxes and diffs? (Not Fords) Another issue, possible value (not on automatics of course) but in geared manual transmissions and such maybe.... But even then I would say no in the modern Fords... They take some exotic synthetic gear oils themselves... Don't mess with a good thing, and my advice is worth more than

Old fashioned Mechanic in Australia.... Cheers

[npccpartsman]

Best thing you can do is leave the additives out and spend the money on more frequent oil changes with a GOOD API certified oil.

[kingranchdude]

I kind of figured this. Just wanted to make sure. Thanks for the input guys...