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1979 Lincoln Continental Town Car #5452522 06/13/20 01:36 AM
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Tigerbangs Offline OP
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My Lincoln Continental Town Car has 13700 miles on it, but because it's sat for sometime, I'm going to change all the fluids including the transmission. I understand that in 1977, Lincoln started using a dextron/mercon transmission fluid. If I change the fluid today, am I safe using the current Dextron VI in that transmission? Give such low mileage, should I drop the pan and change the filter and fluid, or should do a straight fluid exchange?

Re: 1979 Lincoln Continental Town Car [Re: Tigerbangs] #5452527 06/13/20 01:49 AM
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WyrTwister Offline
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What does the owner's manual call for ?


Wyr
God bless
Re: 1979 Lincoln Continental Town Car [Re: Tigerbangs] #5452530 06/13/20 01:53 AM
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JEL01 Offline
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If it calls for that I’d use Valvoline blue bottle Dex/Merc, I don’t think it’s syn and what I’ve been using in my sig Tundra for years, it called for DexII which is long gone


Cars I maintain:
02 Mercedes CLK430
09 Honda Accord V6
13 Lexus RX350 AWD
02 Toyota Tundra 4x4
18 Lexus GX460
Re: 1979 Lincoln Continental Town Car [Re: Tigerbangs] #5452539 06/13/20 03:53 AM
Joined: Dec 2016
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Linctex Offline
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Make sure you don't use any newer types of "low Viscosty" ATF

Any decent "Type F" will be just FINE in that big C6 transmission.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: 1979 Lincoln Continental Town Car [Re: Tigerbangs] #5452540 06/13/20 03:56 AM
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Linctex Offline
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Originally Posted by Tigerbangs
should I drop the pan and change the filter and fluid

I wouldn't disturb the pan if it isn't leaking. There's nothing to be gained.

In this situation, I'd use a "vacuum fluid extractor" and suck it out from the dipstick tube.

similar to:
https://www.harborfreight.com/23-gallon-Manual-Fluid-Extractor-62643.html


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: 1979 Lincoln Continental Town Car [Re: Tigerbangs] #5452550 06/13/20 04:59 AM
Joined: Jan 2011
Posts: 4,164
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Lubener Offline
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Originally Posted by Tigerbangs
My Lincoln Continental Town Car has 13700 miles on it, but because it's sat for sometime, I'm going to change all the fluids including the transmission. I understand that in 1977, Lincoln started using a dextron/mercon transmission fluid. If I change the fluid today, am I safe using the current Dextron VI in that transmission? Give such low mileage, should I drop the pan and change the filter and fluid, or should do a straight fluid exchange?

I would go with dex/merc which would be my first choice, not Dex 6 which is for GM transmissions and a much lower viscosity. . Drop the pan so that you can clean the crud out that settles on the pan bottom. The filter is just a rock catching screen which can be cleaned. If you find the plastic plug floating around inside, you will know that pan has never been dropped and fluid and filter are original. I would also check the vacuum modulator by seeing if fluid leaks out of it after pulling the vacuum line off it. Being that old, I would replace it anyway after you drain the fluid out.

Last edited by Lubener; 06/13/20 05:11 AM.

The "thinking" man's friend.
Re: 1979 Lincoln Continental Town Car [Re: Tigerbangs] #5452570 06/13/20 06:15 AM
Joined: May 2018
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ka9mnx Offline
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Mercon V. Drop the pan/clean and change the filter. If the oil comes out real dirty, do it again in 500 miles.


2005 Ranger 3.0 - SuperTech Syn 0w-20/Motorcraft
2000 4Runner 3.4 - SuperTech Syn 5w-30/Toyota
1997 B2500 Van 3.9 - M1 HM 10w-30/Mopar
1993 F150 4.9 - SuperTech Syn 5w-30/Motorcraft
Re: 1979 Lincoln Continental Town Car [Re: Tigerbangs] #5452603 06/13/20 07:14 AM
Joined: Oct 2005
Posts: 4,813
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Kruse Offline
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Drop the pan and put in a new filter. The bottom of the pan will probably have a bunch of deposits on it. Power wash it off and get it super clean.
ALSO, the torque converter will have a plug on it. Drain your torque converter and get out an extra 4 quarts of oil.

Re: 1979 Lincoln Continental Town Car [Re: Tigerbangs] #5452613 06/13/20 07:29 AM
Joined: Aug 2003
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Eddie Hudson Offline
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I have 2 1978 Mark Vs, 2 1979 Mark Vs, and a 1977 Grand Marquis. Use Dex/Merc III, don't use anything else. Drop the pan and change the filter, it's worked for me for over 35 years.


Re: 1979 Lincoln Continental Town Car [Re: Tigerbangs] #5452679 06/13/20 08:46 AM
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Kira Offline
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Your stable represents 208 years of "Fordage".

Are you one of the Ghostbusters?

Re: 1979 Lincoln Continental Town Car [Re: Linctex] #5452787 06/13/20 10:49 AM
Joined: Sep 2019
Posts: 887
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Jackson_Slugger Offline
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Originally Posted by Linctex
Originally Posted by Tigerbangs
should I drop the pan and change the filter and fluid

I wouldn't disturb the pan if it isn't leaking. There's nothing to be gained.

In this situation, I'd use a "vacuum fluid extractor" and suck it out from the dipstick tube.

similar to:
https://www.harborfreight.com/23-gallon-Manual-Fluid-Extractor-62643.html


Great post! Thank you...

Re: 1979 Lincoln Continental Town Car [Re: Tigerbangs] #5452831 06/13/20 11:29 AM
Joined: Mar 2008
Posts: 9,861
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slacktide_bitog Offline
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If your transmission doesn't have a drain plug, get an aftermarket pan that has one. This will make future ATF changes much easier smile

Maxlife is a great choice for any transmission calling for Dex/Merc

Re: 1979 Lincoln Continental Town Car [Re: Lubener] #5452841 06/13/20 11:41 AM
Joined: Jul 2005
Posts: 13,200
dave1251 Offline
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Originally Posted by Lubener
Originally Posted by Tigerbangs
My Lincoln Continental Town Car has 13700 miles on it, but because it's sat for sometime, I'm going to change all the fluids including the transmission. I understand that in 1977, Lincoln started using a dextron/mercon transmission fluid. If I change the fluid today, am I safe using the current Dextron VI in that transmission? Give such low mileage, should I drop the pan and change the filter and fluid, or should do a straight fluid exchange?

I would go with dex/merc which would be my first choice, not Dex 6 which is for GM transmissions and a much lower viscosity. . Drop the pan so that you can clean the crud out that settles on the pan bottom. The filter is just a rock catching screen which can be cleaned. If you find the plastic plug floating around inside, you will know that pan has never been dropped and fluid and filter are original. I would also check the vacuum modulator by seeing if fluid leaks out of it after pulling the vacuum line off it. Being that old, I would replace it anyway after you drain the fluid out.



Sure. Recommended a ATF which is thinner than LV fluid after 10K miles of use. Are you going to recommend changing the ATF every oil change to keep the viscosity up?


make the inside of your engine oil cap white.
don't use.
Re: 1979 Lincoln Continental Town Car [Re: Kira] #5453467 06/14/20 07:19 AM
Joined: Aug 2003
Posts: 13
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Eddie Hudson Offline
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Originally Posted by Kira
Your stable represents 208 years of "Fordage".

Are you one of the Ghostbusters?


All are waiting to be returned to their original glory, along with a 1992 Explorer, 2001 Expedition and my daily driver, a 2010 Edge.

Re: 1979 Lincoln Continental Town Car [Re: Tigerbangs] #5453530 06/14/20 08:24 AM
Joined: Aug 2011
Posts: 2,098
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kstanf150 Offline
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Originally Posted by Tigerbangs
My Lincoln Continental Town Car has 13700 miles on it, but because it's sat for sometime, I'm going to change all the fluids including the transmission. I understand that in 1977, Lincoln started using a dextron/mercon transmission fluid. If I change the fluid today, am I safe using the current Dextron VI in that transmission? Give such low mileage, should I drop the pan and change the filter and fluid, or should do a straight fluid exchange?


Pull the dipstick- the trans fluid spec should be listed on stick toward the bottom

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