Some remarks on article on Lucas oil additive

[noi8u]

Originally Posted By: ionbeam22
The point is, Lucas Oil Stabiliser is not ment to be 100% of the fill in the engine. You are suposed to use it in combination with 80% typical motor oil.

The whole point is to have a combination of lighter and very heavy oil (plus tacky co-polymers), such that the very heavy oils can get carried around the system to get where they need to be. All by themselves, they are too thick.

Lucas Oil stabilizer has its uses, which would generally be in older engines with oil consumption problems or that are prone to dry starts.



Wish it said all that on the bottle. Wouldn't want to start an engine with 60wt motor oil, never mind 480 gear oil.

 

[kilou]

Originally Posted By: noi8u

Wish it said all that on the bottle. Wouldn't want to start an engine with 60wt motor oil, never mind 480 gear oil.


You don't want it in your sump if Lucas+oil did actually act as a 60wt motor oil. But the BITOG test, although largely imperfect, did show quite clearly that Lucas added to oil made the oil actually act differently, and especially not as a thicker oil which had more difficulties climbing the gears. This is why we cannot draw any conclusion by looking just at viscosities, apparent foaming etc. We'll need an interested fellow have a few UOA done on his engine, then get some Lucas, pour it in the engine using the same oil as before and redo some UOA to compare. I must say I'm not going to be that guy bt that's for other reasons

If Lucas actually make the oil climb gears, it DOES change the oil properties so we cannot compare it with a straight SAE60 motor oil anymore just because it may have the same viscosity.

 

[Bgalvan]

It does say that on its bottle.