post #1 of Old 04-09-2013, 01:19 PM Thread Starter
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1998 ZJ 
Join Date: Feb 2013
Location: Whittier
Posts: 136

I'm sure this has been addressed before. What are the thoughts/feelings of using Lucas additives in either the engine and or transmission?

just_urd is offline  
post #2 of Old 04-09-2013, 01:37 PM
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1993 ZJ 
Join Date: Apr 2010
Location: Oklahoma
Posts: 250
Opinions very. Personally, I've been using their products for the past 15 years in all of my vehicles without complaint. I have a 1951 Harry Ferguson tractor that has been needing a crank kit since I purchased it about 10 years ago, due to loose rods. I run a 50/50 mix of SAE 60 oil and Lucas Oil Stabilizer in the pan and on the hottest of days, oil pressure never drops below 20 PSI.

In my 1993 AX-15 ZJ, I added Lucas Oil Stab to both the engine and MT. At current, I have just under 260k miles on the entire original drivetrain, with no oil consumption between changes. I have no reason to believe it won't go another 260k.

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post #3 of Old 04-09-2013, 02:30 PM
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1997 ZJ 
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I've had no problems with Lucas in the engine oil of various vehicles. As a personal rule, I do my best to avoid adding anything other than atf in the trans.

My cylinder head overhaul:
My transmission overhaul:
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post #4 of Old 04-09-2013, 02:48 PM
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1998 ZJ 
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Snake oil. I would rather have oil than additive in my Jeep. Just because people have used it with out problems doesn't mean it's worth anything. When the Crap hits the fan and the motor gets too hot what would you rather have protecting it? Oil or some thick additive? If the additive was as good or better than the oil then why not just make the additive the oil? It's not. It isn't made to the same standards as oil and it just takes up the space where oil could be. Today's oils have plenty of detergents and conditioners in them.
If you have low oil pressure then you switch to a thicker oil or fix the problem.
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post #5 of Old 04-09-2013, 03:47 PM Thread Starter
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1998 ZJ 
Join Date: Feb 2013
Location: Whittier
Posts: 136
Well, I've been running 10w40 since I've owned it. I was just thinking of an additive to fill in any voids that the oil may not be covering itself. Higher viscosity does sound like an easier solution. Being in the LA area I'm sure it wouldn't effect much. Thanks for the inputs...
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