Anyone used Lucas in their LS1?
03-26-2006, 08:16 PM
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Anyone used Lucas in their LS1? Just curious if anyone had used any in thier LS1 with synthetic oil? This came up in a discussion at work, then turned into a full out argument (that I wasn't in) and I wanted to see some other opinions.
03-26-2006, 10:18 PM
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I swore by it once until the resident "oil GOD" ( his board name is Patman) posted up some figures about the quality of certain oils and aditives after 500 miles.
The Lucas was almost worthless. Forgot the details, but it was VERY obvious. If the search was working for anything before Jan'06 I'd find it to post.
I stopped using additives after that. Now I use German Castrol 0w-40
The Lucas was almost worthless. Forgot the details, but it was VERY obvious. If the search was working for anything before Jan'06 I'd find it to post.
I stopped using additives after that. Now I use German Castrol 0w-40
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03-26-2006, 11:09 PM
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Originally Posted by 98ssinar
I use it and love it
BTW...MOST HARDCORE DRAG RACERS use additives. 
Last edited by NHRAMAN; 03-26-2006 at 11:24 PM.
03-26-2006, 11:53 PM
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Some of the reason for the tapping is that 30 or 40 grade Mobil turns water thin when it gets super hot. My car ticked after some abuse, I then put in 40 grade German Casrol and it stopped almost completly, the slight noise now is from the more aggresive cam.
The Lucas is so thick it gives some backbone to the Mobil oil so the lifters don't tick as much.
The Lucas is so thick it gives some backbone to the Mobil oil so the lifters don't tick as much.
04-04-2006, 02:05 AM
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I'm going to start using it, after I drive awhile my oil pressure slowy goes down. The Mobil 1 seems to thin out pretty bad. Next oil change the Lucas is going in for sure.
04-04-2006, 03:07 AM
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synthetic vs mineral based oil and pressure A brief description of the two first.
Imagine a 4x8 sheet of plywood (your bearings) with basketballs and tennis ***** underneath (mineral based oils) Natural differences in molecule sizes un-even load distribution, plywood riding only on the basketballs (bigger molecules) forces a rapid breakdown and loses viscosity and bearing protection. Now imagine the plywood with ALL tennis ***** (synthetic) underneath. Now we have many more molecules sharing an equal amount of the load covering much more surface area of the plywood. Synthetic gives SO much more protection than a mineral based oil it's a joke.
Oil pressure, defined
Obviously your engine has an oil pump. It also has a regulator as well, called a bypass valve. When your engine is cold and the oil is thick, the bypass opens all the way (if you have a decent engine) and due to restrictions in the drain back channel, simply can't bypass all that oil, thus the high pressure when cold. As the temp of the oil increases and thins out the bypass can now regulate the pressure as needed. Thinner oil eats up less horsepower, parasitic drag on the engine due to oil thickness.
the "ticking" some of you have heard is the horizontal bars (they keep the roller lifters from spinning in their bores) tapping on the lifter valley of the block, sounds nasty but it's not that big a deal really
I have blown oil filters off the block by revving the engine when cold.
Imagine a 4x8 sheet of plywood (your bearings) with basketballs and tennis ***** underneath (mineral based oils) Natural differences in molecule sizes un-even load distribution, plywood riding only on the basketballs (bigger molecules) forces a rapid breakdown and loses viscosity and bearing protection. Now imagine the plywood with ALL tennis ***** (synthetic) underneath. Now we have many more molecules sharing an equal amount of the load covering much more surface area of the plywood. Synthetic gives SO much more protection than a mineral based oil it's a joke.
Oil pressure, defined
Obviously your engine has an oil pump. It also has a regulator as well, called a bypass valve. When your engine is cold and the oil is thick, the bypass opens all the way (if you have a decent engine) and due to restrictions in the drain back channel, simply can't bypass all that oil, thus the high pressure when cold. As the temp of the oil increases and thins out the bypass can now regulate the pressure as needed. Thinner oil eats up less horsepower, parasitic drag on the engine due to oil thickness.
the "ticking" some of you have heard is the horizontal bars (they keep the roller lifters from spinning in their bores) tapping on the lifter valley of the block, sounds nasty but it's not that big a deal really
I have blown oil filters off the block by revving the engine when cold.
