SAE 140 oil, EP or D

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G3L1946
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SAE 140 oil, EP or D

Post by G3L1946 »

Hi all,

Quick question regarding SAE 140 oil for rear fork hinge. Castrol produce both a 140 EP and a 140 D.
Which is the correct one please? One is cheaper than the other so maybe to do with additional additives that are not appropriate or necessary?

Thanks,

Steve
Mick D
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Re: SAE 140 oil, EP or D

Post by Mick D »

Hi

140 D is a lower pressure gear oil than 140EP, (extreme pressure). The additives in EP are not beneficial to phosphor bronze so the best oil is 140 D

Though I wouldn't buy 140 D if I had some 140 EP if it was destined for the SA pivot ;)

Regards Mick
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G3L1946
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Re: SAE 140 oil, EP or D

Post by G3L1946 »

Hi Mick,

I don’t have either in the garage so nothing will be wasted. Locating a monster syringe at the moment as this seems a good way of getting the stuff into such a difficult location!
The correct location for the entry screw is 9 O’clock I believe?

Thanks

Steve
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clive
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Re: SAE 140 oil, EP or D

Post by clive »

the correct location is one which allows access and is not interferred with by the oil pipes! ;)
clive
if it ain't broke don't fix
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G3L1946
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Re: SAE 140 oil, EP or D

Post by G3L1946 »

Hi Clive,
When stripping the bike down the filler location was on the other side from the oil pipes! Does it have a bearing ( no pun intended ) which side it goes? Also, doesn’t the filler hole need locating in a position so that overflow indicates correct level or just not too critical?

Steve
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Re: SAE 140 oil, EP or D

Post by Mick D »

Hi

The hole should be at three or nine o'clock, as Clive says, orientate it to suit access past the oil pipes. I've always assumed it acts as a level plug.

Regards Mick
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G3L1946
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Re: SAE 140 oil, EP or D

Post by G3L1946 »

Hi Mick,

That was my assumption, 9 or 3 o’clock. Better replace it on the oil tank side and not where it had previously been placed.
Thanks to Clive and Mick, I think I’ve got the answer,

Regards from a 30 degree North Yorkshire!

Steve
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Re: SAE 140 oil, EP or D

Post by 56G80S »

I don't think overfilling will be a problem somehow. It takes long enough to get anything in, even using the barrel from a hypodermic syringe (with the needle popped off).

Johnny B
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