06screwlariat

So i have 114k on my 2006 5.4, It was having some rough, dry starts after sitting for awhile(over a day). Last oil change, I substituted a quart of oil for Lucas oil stabilizer. That would make it 15% of the oil the Lucas oil stabilizer. I noticed alot smoother starts, and it runs smoother. I'm due for another oil change, and the Lucas oil stabilizer bottle says you can run it at 30% of the total, so that would mean 5 quarts of oil and 2 quarts of Lucas oil stabilizer.
So my question is, Where this stuff is so much thicker than normal oil, is it going to cause long term damage to my cam phasers, and the whole variable camshaft timing system if i use it?

Bought the truck used, with 90k, not sure about the previous maintenance, but since I've had it i've used Motorcraft 5-20 and the 820-S Motorcraft filter.

Mod (Ret.)

How do you know it is running smoother and starts smoother? Please explain, as I cannot see how anyone can make this type of judgement with their ears or seat of the pants.

A good maintenance schedule with quality oil will keep your truck healthy. Additives are not needed if you follow a good schedule.

06screwlariat

Less rattle when started, less exhaust noise when started, the first few seconds when started it sounds terrible without it, less shaking when first started.

country_boy2835

subscribed

otto457

Where to begin. "Dry" starts are every time there's no oil pressure, however there is always a thin layer of oil on the engine internals. This is more about film strength and has nothing to do with viscosity. At cold start up you want the thinnest you can get. Getting oil to the places it needs to be quickly is much more important than the belief that there's no film of oil. Lucas defeats the purpose we accomplish with mulit grade oils having a low viscosity when cold. If there was no need for better cold flow we'd all still be using mono grade oils.
Lucas contains no anti wear additives. This is a major issue since all motor oils contain things like ZDDP, moly, etc to aid in reduction of wear. So by diluting the oil's additives with the Lucas you're going to get less life out of the oil and more wear. This also reduces the anti foam additives like silicon, air in your oil is not a good thing.
Use a quality oil and skip the additives unless you know what is in them. To answer your question, it won't immediately kill the phasers but it sure doesn't help.


http://www.bobistheoilguy.com/forums...Number=2626380

http://wayback.archive.org/web/jsp/I...as%2Flucas.htm

06screwlariat

Thanks, however wouldn't the lucas oil stay on the engine internals better and not all go down into the oil pan? So when started its not dry.

otto457

Film strength is different from the viscosity. While the Lucas is a thicker viscosity, it will still run off of internal parts and not leave behind a film of oil as well. Oils with higher film strength, while they may have a lower viscosity and appear to run off quickly, leave a better lubrication barrier on start up. Not all the oil goes into the pan after shutdown, if that was the case motors would be toast in a hurry. Plus a proper oil will leave things like moly that stay on the ferrous parts and add another level of protection. Lucas doesn't have any anti wear additives to leave behind.
Don't get too caught up in the cool little gear machine at the parts store.

Especial86

iTrader: (1)

Your implying that the Lucas will separate from the oil and hang out on the internals.. It does not do that. If it did do that it would be considered sludge and would gum up the works...
Lucas just thickens oil. It's great for a loose motor with blow by.
I put a whole bottle of Lucas power steering formula in my power steering system of my bronco. The older fords power steering pumps used to notoriously whine back in the day. Well one 24 degree morning I started my truck and let it warm up. I came outta the house 10 minutes later, and there was power steering all over the ground. The Lucas was so viscous when cold it caused my power steering line to blow right off, and I lost all my power steering fluid on the ground. The hose was an easy fix with a hose clamp but it did prove to me that lucas flows like mud when cold... I would leave it out if you are affected by cold temperatures.

06screwlariat

That was part of it.....thanks for the information!

Ole703

Lucas Oil Additives should only be used on a worn motor that your trying to get the last few kicks out of. Quality oil and filter with regular maintenance will do more than lucas. Lucas may quiet things down in an engine noise wise. But that stuff is like molasses when cold. Thinner oil, is better on cold starts flows faster, lubricates better.