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Hydraulic fluid

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Hydraulic fluid #1
btrotter BRUCE Trotter Littlefield, TX, USA Sign in to contact 1973 MG MGB	Topic Creator (OP) Apr 26, 2024 04:16 PM Joined 2 years ago 50 Posts

Can I safely use hydraulic jack oil for my clutch oil
on my 1973 MGB?

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Re: Hydraulic fluid #2
ghnl Eric Russell Mebane, NC, USA Sign in to contact 1961 MG MGA "Calvin"	Apr 26, 2024 04:21 PM Top Contributor Joined 12 years ago 12,853 Posts

No. It uses brake fluid. DOT 3 or DOT 4. Unless you know for certain that it has been changed to DOT 5 which is silicone based. DOT 3 & DOT 4 (glycol based) should not be mixed with DOT 5.

Do not be mislead if the label on DOT 4 says "synthetic" - that is just marketing. Only DOT 5 is silicone based.

Eric Russell ~ Mebane, NC
1961 MGA #61, 1981 Alfa Romeo GTV6, 1984 Alfa Romeo Spider, 1991 Honda ST1100

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Re: Hydraulic fluid #3
btrotter BRUCE Trotter Littlefield, TX, USA Sign in to contact 1973 MG MGB	Topic Creator (OP) Apr 27, 2024 04:15 PM Joined 2 years ago 50 Posts

O.K. Thanks. Glad I Didn't put the jack oil in.

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