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Which additives clash with coolant/water #4474609
07/30/17 11:52 AM
07/30/17 11:52 AM
Joined: Dec 2013
Posts: 3,686
Massachusetts
turtlevette Offline OP
turtlevette  Offline OP
Joined: Dec 2013
Posts: 3,686
Massachusetts
I know they recommend a non detergent oil for water pump bearing lube because of persistent water intrusion.

So on an engine that has the same issue of persistent small amounts of coolant intrusion, what if anything can I do.

Non detergent oil apparently has no wear additives either. Is this correct?

Does zddp react with coolant? If not, I could use ND oil and add zddp to make my own custom formula.

I'm wondering about a marine oil as well but don't want to spend a lot.

I don't care about detergents as the engine is clean as a whistle.


USA-1
Re: Which additives clash with coolant/water [Re: turtlevette] #4474646
07/30/17 12:47 PM
07/30/17 12:47 PM
Joined: Sep 2010
Posts: 7,485
S California
OneEyeJack Offline
OneEyeJack  Offline
Joined: Sep 2010
Posts: 7,485
S California
Glycol reacts strongly with oil additives like sulfonates, phenates, and ZDDP.

You can ignore me and go to MachineryLubrication.com and do some searching. I do know that even very small amounts of glycol leaking into lubrication oil will destroy the oil kill an engine in short order. One of the most important things you can do for expensive engines is to test for glycol in the engine oil and if found, fix it right away.

Re: Which additives clash with coolant/water [Re: turtlevette] #4474670
07/30/17 01:29 PM
07/30/17 01:29 PM
Joined: Mar 2016
Posts: 1,351
toronto
PeterPolyol Offline
PeterPolyol  Offline
Joined: Mar 2016
Posts: 1,351
toronto
"Clash of the Titan[ium]"

Re: Which additives clash with coolant/water [Re: turtlevette] #4474746
07/30/17 03:27 PM
07/30/17 03:27 PM
Joined: Sep 2004
Posts: 7,522
Marshfield , MA
andyd Offline
andyd  Offline
Joined: Sep 2004
Posts: 7,522
Marshfield , MA
What was used in the old days when WPs were re-build-able? https://barsleaks.com/product/cooling-system-water-pump-lube-with-anti-rust/


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2

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