Quote:
Originally Posted by PhatRoyale
Don't forget food coloring 
Yep, I use Sl-1 cleaner every once in a while too, it seems to do the job fine. Redline is a company that can actually be trusted. |
Most of these products are total bullshit for a variety of reasons much like Extenze penis pills. Remember that even modern conventional oils selling for $3 per quart are much better than the crap from 40 yrs ago. I don't think modern oil needs any additives or need to be changed any more than every 5 K miles. Remember "sludge" is not on the moving parts but only on the non moving surfaces. Who cares if it's a old car? Sludge cleaners can absolutely cause leaks as they penetrate old gaskets. I've done it
( I've used Mobil 1 and Castrol Syntec and never noticed any difference other than I could wait longer between changes.
One odd thing I noticed yrs ago is Tufoil and Slick 50. They did not do a damn thing for mileage however they definitely
decreased oil consumption and smoke on start up on a few old clunkers I used to drive. It could be that these products actually put a coating on the valve guides. I can't really say but the effect was dramatic.
Injector cleaners could work in theory. Headers work for sure.
The only scientific way to test any product is to do a blind test. Put in the products or a placebo and have the participants report the changes. Chances are that all of them will report improvements due to the placebo effect.
