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Diff Oil ??? EP or not EP ?

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Diff Oil ??? EP or not EP ?
Tony Griffiths Offline
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Joined: May 2018 Posts: 2,954 Threads: 558
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Location: Peak District, Derbyshire
Car type: 1929 Chummy, 1930 Chummy, 1930 Ulster Replica, 1934 Ruby
#8
06-08-2022, 10:07 PM
As stated, normally, EP oils contain sulphur - in either an active form - that will attack bronze, copper and their alloys - or an inactive, which won't. If an EP oil has an API rating of either GL-4 or GL-5 then the sulphur is inactive and should be safe to use in boxes with bronze bearings. Possibly EP is an over-the-top answer?
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Messages In This Thread
Diff Oil ??? EP or not EP ? - by flywheel1935 - 06-08-2022, 01:27 PM
RE: Diff Oil ??? EP or not EP ? - by Alan Osborne - 06-08-2022, 04:29 PM
RE: Diff Oil ??? EP or not EP ? - by flywheel1935 - 06-08-2022, 04:50 PM
RE: Diff Oil ??? EP or not EP ? - by Colin Morgan - 06-08-2022, 05:37 PM
RE: Diff Oil ??? EP or not EP ? - by flywheel1935 - 06-08-2022, 07:03 PM
RE: Diff Oil ??? EP or not EP ? - by Colin Morgan - 06-08-2022, 09:18 PM
RE: Diff Oil ??? EP or not EP ? - by Tony Griffiths - 06-08-2022, 10:07 PM
RE: Diff Oil ??? EP or not EP ? - by Parazine - 06-08-2022, 10:46 PM
RE: Diff Oil ??? EP or not EP ? - by Ron Hayhurst - 08-08-2022, 10:07 AM
RE: Diff Oil ??? EP or not EP ? - by Reckless Rat - 08-08-2022, 12:40 PM
RE: Diff Oil ??? EP or not EP ? - by Steve Jones - 08-08-2022, 04:26 PM
RE: Diff Oil ??? EP or not EP ? - by Colin Wilks - 08-08-2022, 06:15 PM
RE: Diff Oil ??? EP or not EP ? - by Hedd_Jones - 08-08-2022, 06:35 PM
RE: Diff Oil ??? EP or not EP ? - by Steve Jones - 08-08-2022, 06:57 PM

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