I searched and did not find anything about this here so..

Has anyone ever used this in a rotary? A graphite engine oil additive.



I know with the design of the rotary it is especially crucial to lubricate the seals. We all know (I think..) that today's modern gasoline with all the detergents that are designed to keep a piston engines valves clean robs the rotary of its lubricant in the combustion chamber, perhaps even the other two faces of the rotor simultaneously. So with pre-mix and the use of oil additives such as this can we ensure a long lasting, reliable rotary?

 

Considering rotaries already have trouble accumulating carbon deposits from incomplete combustion of oil used to lubricate the rotor seals, I'm gonna take a wild leap and say that intentionally adding more carbon to your oil probably won't help the engine run better. In fact, since the rotor seals are lubricated by a pump that drips oil into the combustion chambers via a set of small holes, using a solid additive that might clog the holes is about the worst thing you can do.

The detergents in modern gasoline enhance its ability to dissolve coke deposits, not liquid oil. Gasoline by itself can dissolve liquid oil just fine; that's why it's a really bad thing to run an engine with a malfunctioning ignition system, because unburned gasoline will smear around and weaken the oil film on all the seals, not just the seals closest to the combustion chamber.

Just use good oil and call it a day. I use a Group 5 synthetic oil, which has polar molecules that allow it to adhere more strongly to metal surfaces. Makes a sulfur smell when the engine is cold, but other than that it works great.

 

I can't find the MSDS sheet, that will tell us what it really is. It's odd that it is so hard to find.

Krex Graphite Engine Lubricant | Krex Inc.

 

Arco introduced something similar in the early 1980s resulting in big problems for some. It was withdrawn from the market. Arco Graphite Oil... - Ford Truck Enthusiasts Forums

 

potential issues aside why would one add additives when cranking up the OMP and premixing is already enough?

 

Just for clarification .. This product is a liquid, not sure if you meant that it is actually a solid or what?

 

Graphite is a solid.

 

I have had good luck running plain old Valvoline 10w40 and throwing Idemitsu Premix and FP Plus in the tank.

 

if the oil needs an "extra" additive to function ... u need a better oil.

 

Funny you say that. Ford Lincoln is currently using Krex graphite additive in the dealer as an additional protection option for oil changes. I have been putting it in several cars from 4 cylinders to Ecoboost V6. Haven't heard any problems with it so far..

 

Again. Without the MSDS sheet you don't even know what it really is. Dealers don't know ****.

 

same idea as "injector cleaner SERVICES" that cost 149.99 when they just pour a bottle of gumout that cost 3.99 at local parts store.

 

Caution... I have not used this particular produce, however I have used something similar.
It plugged the oil filter, starved the engine of oil lubrication and pressure and shortly there after the engine grenaded.

Krex seems to stand behind thier produce..
Krex Graphite Engine Lubricant can further differentiate services by providing customers with the Krex 10 Year / 200,000 Mile Limited Engine Lubrication Warranty. For complete details, please contact us or view the complete Krex 10 Year / 200,000 Mile Limited Engine Lubrication Warranty Term & Conditions.

WHAT THIS WARRANTY COVERS: For a period of 10 years or until 200,000 miles are registered on the odometer of your new vehicle, whichever occurs first, this Warranty will cover
the failure or excessive wear of the following engine parts of your new vehicle: Crankshaft and Bearings, Oil Pump, Internal Timing Gears and Chain, Camshaft and Bearings,
Valve Lifters, Rocker Arms and Pivots, Push Rods, Valve Guides, Pistons and Rings, Wrist Pins and Bushings, Cylinders, Connecting Rods, Distributor Drive Gear, Turbo
Bearings, Cylinder Lining and Bore, Balance Shafts, and Valve Stems. During the term of this Warranty, if a covered engine part fails or wears excessively due to a lubrication
failure, return the vehicle to the issuing dealership, present this Warranty and your repair orders showing the vehicle’s service history, and the covered parts will be repaired or replaced
without charge up to the Limit of Liability.
LIMITS OF LIABILITY:

 

I would HIGHLY recommend that you contact Ford Customer service, and ask them if THEY think these additives are needed in your engine, and what it does to your warranty, if you have an engine failure that you want repaired.

I bet they will tell you NOT to use those products in your engine.
In fact, I bet if you looked at your owners manual, it would tell you right there that you don't need to use any extra additives other than the engine oil that meets the required specs for each car.

Stop wasting your money at the dealer on that crap.
If FoMoCo finds out you used that crap during a warranty claim, they're going to deny it.

BC.

 

1. KREX is not a liquid, it's a colloid. That means it's a solid powder suspended in a fluid, like muddy water or dusty air. No matter what they added to the oil to make the graphite float instead of settling out, the additive will break down eventually and the graphite will settle out and clog things up.

2. Are you really comparing a big American V8 to a rotary engine? There are more than slight differences in the designs of the two engines; the tolerances on a rotary engine are an order of magnitude smaller than the tolerances on a piston engine (especially a large V-engine). I already explained why KREX is a bad idea for an engine that lubricates itself by dripping oil into the combustion chamber. Did you actually read my post?

 

In fairness, they also make the injectors run at maximum fuel pressure to blast out any goop that's stuck in them. It's a slightly more complicated procedure that Joe User wouldn't know how to do.

 

Graphite is an excellent electrical conductor.

Rotary engine burns it's motor oil.

Oil gets on plug insulators.

Misfire.

S

 

It's a point of historical fact. Tried before and failed. Perhaps the new version is better, but I'm not betting my engine on it. You are free to wager yours.

 

Right. I literally just watched a tech perform this service this morning on a Lincoln Navigator, there is a special service tool that is used in place of the fuel pump. The tool is filled with cleaner, pressurized with shop air.

 

I was simply stating that Ford is currently using this in their extra protection plan, and found it funny that something similar was used earlier by Ford

 

To set the record straight.

I never recommended using this in a rotary or compared it to a V8. I just posted the product to see what people here thought about it in conjunction with a rotary.

Some good input here so far.

 

exactly!!

It's amazing the amount of crap service writers try to sell people at dealerships.

I ONLY take the car for oil changes and that's it. And I do it - not because I cannot do an oil change - but because I got an extended warranty through Mazda and want to keep the local dealer happy with service records in case I need engine work in the future.

But all the other crap they always try to sell me when I go for an oil change I always say NO.

 

^^^^^^^^^^^^ Dealers do know how to make money off of ignorant customers.

 

can you post a copy of their extra protection plan? Is it anywhere we can find?
Never heard of this stuff.
Graphite is not that great of a lubricate

 

that only happens at an "honest" dealership, which is as rare as seeing Miss America strip herself in public.