crazy D Posted February 6, 2007 Share Posted February 6, 2007 ive heard good things about this stuff...seals up the engine and provides better performance without gunking up the engine like the want a be's.....anybody know of it? is it good? does it work? Link to comment Share on other sites More sharing options...
GeneralDisorder Posted February 6, 2007 Share Posted February 6, 2007 Junk. www.bobistheoilguy.com GD Link to comment Share on other sites More sharing options...
misledxcracker Posted February 6, 2007 Share Posted February 6, 2007 Personal experience says JUNK. I dont need that website to tell me so A "reputable mechanic" in AZ told me that Lucas "works wonders"... so I said to hell with it, bought some... and put it in. I used exactly as much as it said for 4 cylinders... Drove it for maybe 100 miles, and it blew the rear main seal. Blew it CLEAR out... MMO is good stuff, Lucas is junk. It makes 10/40 oil... much thicker Link to comment Share on other sites More sharing options...
86BRATMAN Posted February 6, 2007 Share Posted February 6, 2007 i'll agree on lucas being junk, with the exception of one case i used it in a car that i was trading in (non subaru) because it does thinken oil, and it made my blue smoke trail go away when i pulled it into the car lot Link to comment Share on other sites More sharing options...
daeron Posted February 6, 2007 Share Posted February 6, 2007 I actually HAVE had good experiences with an engine I used it in extensively for a couple years, before I heard people say it was JUNK. I stopped using it because I was shown a PLETHORA of information against it, and all it had arguing for it was the silly little plastic gearset in the parts store. I started using it every third or fourth oil change in my 75 280Z.. the speedo cable was broken the whole time I was driving the car, and the odometer had 11500 on it.. so the motor probably had over 100K on it?? and I have no idea what i put on it in 4 1/2 years of driving, BUT the rest of the time since I got my license I have averaged almost 20K a year. that being said, I will make the conservative estimate that I put 65,000 miles on my 120,000 mile motor. I was using lucas towards the beginning, and it seemed to stop up an oil leak I had had.. I parked on dirt though, and never REALLY saw a "leak" anywhere, I just "lost" oil. the lucas seemed to stop it. After I stopped using the lucas, I tried to get the "high mileage" motor oil because I was fighting oil leaks the hard (and stupid) way. Now I honestly do NOT recommend the use of the stuff at ALL.. as I said, I have read too much negative about it, and seen FAR too little hard data in it's favor. BUT the motor in that Z pulled hard and strong, and did not smoke a bit. I ran it to hell and back, NOT taking the best of care of it.. and it loved every minute of it. The car was sidelined by an electrical fire 2 years ago, and I have not run the motor in that whole time.. The biggest reason I post this is to see what the thoughts are of others on the forum here. Most of us would agree that lucas == bad engine juju... BUT the motor that I ran it in really seemed to like it. If I ever pull the engine apart, I will be sure to dig this thread up and resurrect it, and inform everyone what the REAL outcome of this engine was. Link to comment Share on other sites More sharing options...
GeneralDisorder Posted February 6, 2007 Share Posted February 6, 2007 MMO is good stuff, Lucas is junk. It makes 10/40 oil... much thicker MMO is really just ATF - which is an excelent lubricant, and has tons of detergents in it. Used car guys use ATF to clean engine bays for a reason, and people use ATF to clean engines of deposits too. HOWEVER - as a flush for a few hundred LIGHT miles it's alright. Do not leave it in - it's not engine oil, and shouldn't be used long term. Only thing that should be in your engine is OIL. Plain and simple. If the stuff had good properties as an engine oil, then it would be in the oil in the first place. Lucas is just plain garbage. *Maybe* in a tractor differential that stayed cold, and slow speed at all times. But really not even then as there's better alternatives for those situations as well. GD Link to comment Share on other sites More sharing options...
daeron Posted February 7, 2007 Share Posted February 7, 2007 I want to add again, that I avoid lucas oil stabilizer like the plague.. I just HAVE used it, and had no problems. MY understanding is that it leaves alot of varnish deposits in the crankcase. Link to comment Share on other sites More sharing options...
Milemaker13 Posted February 7, 2007 Share Posted February 7, 2007 Interesting... I used to put the stuff in my f250 work truck, because the car guys said it was good. Bring an old motor back, blah blah blah. I don't know, never seemed to hurt anything. That was awhile ago. Now I think that if you want thicker oil... put in thicker oil, not a thickener in your oil. Cars, trucks and tractors have run for a hundred plus years on regular Dino oils. Thats proven performance Link to comment Share on other sites More sharing options...
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