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Anybody use LUCAS Oil Stop Leak? Reviews on line say it works;I have not used it.

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Anybody use LUCAS Oil Stop Leak? Reviews on line say it works;I have not used it. #1
ski.dive Fred M FL & VT, FL & VT, USA Sign in to contact 1979 MG MGB MkIII	Topic Creator (OP) Jul 4, 2016 11:11 AM Joined 11 years ago 2,123 Posts

Anybody use LUCAS Oil Stop Leak?

Reviews on line say it works

I have not used it

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Re: Anybody use LUCAS Oil Stop Leak? Reviews on line say it works;I have not used it. #2
ghnl Eric Russell Mebane, NC, USA Sign in to contact 1961 MG MGA "Calvin"	Jul 4, 2016 11:39 AM Top Contributor Joined 14 years ago 15,293 Posts

With a name like 'Lucas'...?

Most of these work by softening & swelling rubber oil seals. So they may work for a while* but eventually the leak gets worse.

* long enough to sell the car and cash the sucker's check...

Eric Russell ~ Mebane, NC
1961 MGA #61, 1̶9̶8̶1̶ ̶A̶l̶f̶a̶ ̶R̶o̶m̶e̶o̶ ̶G̶T̶V̶6̶, 1984 Alfa Romeo Spider, 1991 Honda ST1100

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Re: Anybody use LUCAS Oil Stop Leak? Reviews on line say it works;I have not used it. #3
9146 rick dentel yardley, PA, USA Sign in to contact 1970 Porsche 914 1978 MG MGB 1998 Jeep Cherokee 2001 Jeep Cherokee & more	Jul 4, 2016 05:44 PM Joined 14 years ago 3,966 Posts

Old school was to add brake fluid to swell the old seals. They had a interview with the owner in AutoWeek a while ago, very successful business man with good gorilla marketing. I don't/won't use the stuff.

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Re: Anybody use LUCAS Oil Stop Leak? Reviews on line say it works;I have not used it. #4
SCapritti Scott Capritti Burlington, NJ, USA Sign in to contact 1977 MG MGB	Jul 4, 2016 06:20 PM Joined 10 years ago 37 Posts

I personally prefer STP Smoke Treatment, which can be added at any time, while Lucas, I believe, specifically states that it should be used during an oil change, replacing one quart.

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Re: Anybody use LUCAS Oil Stop Leak? Reviews on line say it works;I have not used it. #5
RAY 67 TOURER Ray Marloff Fort Bragg, CA, USA Sign in to contact 1967 MG MGB "My Girl"	Jul 4, 2016 07:47 PM Top Contributor Joined 16 years ago 17,821 Posts

STP. Stay Together Please. All of these "miracle" fixes are strictly temporary. RAY

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Re: Anybody use LUCAS Oil Stop Leak? Reviews on line say it works;I have not used it. #6
J Baz Jerard Basmagy Middletown, NJ, USA Sign in to contact 1971 MG MGB "B" 1975 Honda MC CB200 1991 Mercedes-Benz 300SL 1998 Porsche Boxster & more	Jul 4, 2016 07:50 PM Joined 11 years ago 1,030 Posts

Only one way to stop oil leaks and that's changing the seals and even that doesn't last forever.

jb

Too soon we get old, too late we get smart!

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Re: Anybody use LUCAS Oil Stop Leak? Reviews on line say it works;I have not used it. #7
RAY 67 TOURER Ray Marloff Fort Bragg, CA, USA Sign in to contact 1967 MG MGB "My Girl"	Jul 4, 2016 07:53 PM Top Contributor Joined 16 years ago 17,821 Posts

Jerard, I racked up quite a few miles on my '67 B in Middletown before I moved to California back in '95. It has some truly great back roads. I wish that I had my supercharger on my car back then. RAY

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Re: Anybody use LUCAS Oil Stop Leak? Reviews on line say it works;I have not used it. #8
Ampro Andrew Smythe Wainwright, AB, Canada Sign in to contact 1973 MG MGB GT	Jul 5, 2016 11:45 AM Joined 10 years ago 246 Posts

Tried it on an old '63 ford falcon I once had and yes it works well, stopped it right up but as a few folks have said, it's only temporary.

The falcon had 200000 miles on the motor, almost zero compression and my dirt poor 19 year old self just wanted it to stop wrecking my driveway.

In a pinch it works, but wouldn't use it now on my 'B

-Andrew

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Re: Anybody use LUCAS Oil Stop Leak? Reviews on line say it works;I have not used it. #9
Chalky David White Coventry, Warwickshire, UK Sign in to contact 1979 MG MGB GT	Jul 5, 2016 12:17 PM Joined 11 years ago 1,442 Posts

A lot of classic oils already contain seal swelling additives as standard.

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