Why do people use lucas "oil stabilizer"?

It makes a stick to you, nasty to wash off mess inside the engine as well. I hate working on a truck that uses Lucas.

 

The first thing I asked, and have never gotten a good answer for, is "what is unstable about name brand motor oils that they need to be stabilized?" Some folks at the Bob is the oil guy website took some LOS and sent samples into the lab to have it tested. It is nothing more than a straight 50w base oil at best. No additives or anything else in it to mean anything. And since additives in motor oil are just as important as the base oil itself, all LOS is going to do in reduce the overall additive package in the motor oil. If one wants a thicker oil, then just buy a 15w50 engine oil. At least you would have the full additive package to help protect the engine. As for gear oils, synthetic gear oils will offer better performance and life than anything LOS could do. LOS is something that can help with a old, tired engine that is on its last leg before a rebuild. For a good engine, I just can't see any benefits, and can actually see how it could be a bad thing.

 

This statement describes most of my engines to a T.

 

I used it once, but never again, I got a oil leak which started about 3 to 4 weeks after putting it in and by 6 weeks that leak was at its worse and never got better, the engine was rebuilt by myself and I work on the engine so I had a great knowledge of it, and I believe 100% that the Lucas caused the oil leak.

 

just had injector harness replaced on series 60 14l, first statement after mechanic took cover off was "good you don't use lucas" he then explained about the sludge it creates.

 

Are you talking about the leaks coming from the sides and rear of the trailer??

 

If you have oil leaks from changing oil, you need to fix the leaks because thinner oil as in synthetic will make a little oil leak into a big one. Thinner oil equals better fuel mileage.

Again you need to fix your oil leaks.

 

I can and have to say there is more the reason to use lucas in any motor new or used. I rebuilt a detroit 60 at 750,000 miles a started running lucas since the guy helping me told me about. I ran it one gallon per oil change with oil changes at 15,000 miles. at 700,000 on the rebuild i had to rebuild the jakes and decided while i had it in the garage to pull the head look at the top end see about doing another rebuild allitle early. when we got the head off the guys helping me asked if i had just rebuilt it or what. when i got back up on the truck i found the piston tops where like new. you could read the date stamps like new. lucas helps alot. extended wear life. reduced cold start wear. the lucas stciks better to the cyc walls and so on to give lub when turning over instead of waiting for the oil pump to pick up oil and push it thru the motor and lube it. I now run lucas with rottella 15w-40. I also fill my fuel filters with lucas fuel treatmeant 75 lucas 25 fuel. which helps my injectors alot. I also run lucas in my rears and tranny. same things with them they run cooler and got a small fuel increase. and never never had problems with oil pumps or clogs, i can normal find a negative to most things i guess lucas would be price. cause otherwise its liqud gold and worth twice what i pay for it

 

how in the world would lucas create and oil leak. it would not.

 

Do you have any evidence that Lucas actually helped your motor? As far as cold starts, the most important thing is to get oil pressure everywhere as fast as possible. Lucas does nothing but hurt that, since it is so thick.

I don't see what piston tops have to do with wear.