Best Oil Additive?

[nuteguy]

I'm experiencing some oil leaks mainly originating from my rear main seal. There are some other random drips in different areas as well. In addition, I've been told that when I let off the gas my Satellite blows a bit of smoke. This leads me to believe that my piston rings aren't in the best shape.

Basically, what I would prefer to try some oil additives before I tackle a job such as replacing the rear main seal. So what is the best oil additive in your professional Mopar opinion?

 

[Dennis H]

Amsoil 10-40 Signature has high zinc and an additive pacjage that massages seals. However, it won't fix leaks.
Rear main seal needs to be replaced by a Mopar guru who knows how. Puffs of smoke may be valve-guide seals. Mine showed a wiff while shifting and was cured by valve guide seal replacement.

 

[451Mopar]

puff of smoke on deceleration is usually valve stem seals. Not sure of an oil additive that really helps with leaks. On engines with varnish and sludge build up, I will use the Gunk 5-minute engine flush before changing the oil. This is a flush used before changing oil, so don't drive the vehicle until after changing the oil and filter. There are a bunch of oil additives on the market. Rislone has several engine oil additives that are reasonably priced? For engine break-in additive, or to boost ZDDP and anti-wear additives, I have been using the Redline Engine Break-In additive.
Bottle (16oz) contains:
33.8 grams total ZDDP (zinc dialkyldithiophosphate)
17,000 ppm, 7.8 grams Phosphorus (P)
20,500 ppm, 9.4 grams Zinc (Zn)
16.6 grams Sulphur (S)

 

[eric383]

In theory the thicker the oil the less it will flow past a leaky seal. The only real way to fix this is to replace the leaky seals and a rebuild if necessary. I have crutched a few engines in my day just to get them through another year or until I could do a rebuild. In the summer I would run straight 30W oil and a bottle of zinc additive. I assume you won't be driving this in the colder weather. I have also used Lucas oil additive to thicken the oil. Good luck.

 

[Histoy]

An good additive that sealed up several leaks in my transmission is AT-205-Re-Seal. You can get it at Summit for $9.97. It's suppose to seal engine and power steering leaks as well. There are several videos on U-Tube about this product. If you're looking for an additive to fix your leak, I'd give it a try.

 

[Sonny Black]

since Sonny started using AMSOIL Z-ROD Synthetic Motor Oil.....my RB Block, it sprung a slight leak..somewhere, :eusa_doh:I cannot fine where???

but that skinny fake oil works well, but- it can be leaky! :icon_rolleyes:

 

[eric383]

You got that right Sonny. The syn oil has a thinner viscosity than dino oil so it will find places to escape if given a chance.

 

[Moparsmitty]

I've had guys at the shop tell me that this Lucas stop leak works pretty well. http://lucasoil.com/products/heavy-duty-trucking/engine-oil-stop-leak You can give it a try, but it's a temporary fix at best. Eventually you'll have to tear into the engine and fix it properly.

 

[BBishere2]

There is an oil additive called 'Restore' that is good to stop leaks and may help with the rings as well. It is fairly expensive per use, every oil change. I sold this at my NAPA store and its users swore by it.