Is LOS at all harmful to the engine?

Beary

 

It states right on the bottle, good for HD motorcycles......

 

Its snake oil, you think the answers here are from an engineer with extensive background in lubrication and failure analysis experience?

 

First of all, you need to prove it's snake oil, ok. Second, every time we get in a synthetic oil debate, someone points out that MOCO sends their CVOs with synthetic, so it must be good. With that kind of logic, if the LOS folks say it's OK, it must be OK.

Beary

 

Believe what you want. I've been in the business over 40 years and have monitored engines for over80 million miles at least so I have my proof. I don't have to prove anything to anyone about anything. It's a religion not a science so the more people on the net that like it well lets all believe its good.

 

It's not what I believe, it's what I know (or don't know). And it's especially not a religion because oil performance doesnt require faith, just testing. Really pretty simple. Does it work or not? Where's the evidence, the data? Worst case scenario, is it safe?

Beary

 

I used to have an older 1999 chevy conversion van that had a very sticky lifter, loud as hell.
It got so bad that I stopped driving the truck. After starting it, it would clack like hell.
I dumped a whole bottle of Lucas oil in when I changed the oil.
After running the truck for 20 minutes, all of a sudden it was quiet, took it for a ride around town, and no more noise, none!
Perhaps it was a coincidence, but it seemed to work for me!
I didn't have any faith that it would do anything, but the truck never had any lifter noise at all after the treatment.

I sold that truck, and bought a used 2003 Yukon Denali, and the day after I brought it home, guess what, I had yet another vehicle with a VERY loud lifter noise. Odd that it didn't make the noise when I test drove it, I think they had warmed it up before I took the test drive. Anyway, this one was much worse than the van, and I was a little pissed off, but bought the truck as-is, so had no recourse with the dealer.
It usually was only noisy at startup, and after the lifters pumped up, it was ok. But after a couple of weeks it got worse, much worse. Was on a trip down south, and thought I was going to get stuck in a repair shop, so I dumped some lucas oil in to see if it would make it more quiet, NO go, this time it did nothing for the noise.
After returning home, I changed the oil and dumped in 1/2 bottle
of Seafoam into the oil, and guess what..after 20 minutes the sound went away totally, and never came back!
When I changed the oil again, it was black as hell. I think the Seafoam did a good job of cleaning the gunk out of the engine.
Seafoam is nothing like Lucas oil, it's as thin as water.

I was never a fan of additives before, but after experiencing what I did, I do think they are can be good in certain circumstances, like old motors that have a lot of sludge in them, and were poorly maintained.

I see no reason to use this stuff in a newer motor though, if it's properly maintained there should be no reason for it.

 

Half a quart of the Lucas in today with fresh Mobil 1 (dumped the Redline 20/60) and my chatter noise is still there....What's anther $18.000!!!!!!

 

I've never used any snake oil. Bike runs fine without it.

 

I think that older bikes with the old style tensioners can benefit from it.
I use it in mine, after having the motor making cam noise last fall had warranty work done, rocker shafts replaced, and lifters replaced, we will see how it goes. I used it in my other bike, and the tensioner wear was much less on that bike.