BDinTX
Well-Known Member
- First Name
- Brad
- Joined
- Jul 18, 2020
- Threads
- 49
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- Location
- Dallas, Tx
- Vehicle(s)
- 2020 JLU Rubicon Recon, 2021 JLU Rubicon
- Thread starter
- #1
In it he's talking primarily about the anti-wear additive "zinc dialkyldithiophosphate" (ZDDP) and how it is needing to be phased out. There were a couple of bits that I latched on to.
1) ZDDP binds to metal (to prevent wear) but it can also foul catalytic converters. Probably why old spec oils are no bueno.
2) ZDDP starts breaking down in the 110-120 degree C range. For us 'mericans that's 230-248 degrees F or, in other words, right where our engines like to run.
I'm thinking the stricter emissions requirements is driving the higher operating temperature of these diesels. That then requires the fancy new oil standard that doesn't have ZDDP in them (and makes it hard to find).
(845) Is this the end of Zinc (ZDDP) in oil? - YouTube
1) ZDDP binds to metal (to prevent wear) but it can also foul catalytic converters. Probably why old spec oils are no bueno.
2) ZDDP starts breaking down in the 110-120 degree C range. For us 'mericans that's 230-248 degrees F or, in other words, right where our engines like to run.
I'm thinking the stricter emissions requirements is driving the higher operating temperature of these diesels. That then requires the fancy new oil standard that doesn't have ZDDP in them (and makes it hard to find).
(845) Is this the end of Zinc (ZDDP) in oil? - YouTube
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