Zinc dialkyldithiophosphate needed in older cars designed to use that oil

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Topic - motor oil standards - pictureguy 16:49:57 09/20/23 (25)

I'm good with anything SE or better, 20W-50 Manual does say SF is preferred. - kff 01:27:57 09/21/23 (4)

I use Rotella T6 synth for the motorcycle - E-Stat 11:24:17 09/21/23 (0)

RE: I'm good with anything SE or better, 20W-50 Manual does say SF is preferred. - pictureguy 11:10:59 09/21/23 (2)

Zinc dialkyldithiophosphate needed in older cars designed to use that oil - kff 13:26:17 09/21/23 (1)

RE: Zinc dialkyldithiophosphate needed in older cars designed to use that oil - pictureguy 14:12:30 09/21/23 (0)

"Swap filters every OTHER change?"... - dark_dave56 00:29:25 09/21/23 (5)

RE: "Swap filters every OTHER change?"... - pictureguy 14:23:20 09/21/23 (4)

Oil and filters are one of those "religious" contentions in the auto world... - dark_dave56 03:14:20 09/23/23 (3)

RE: Oil and filters are one of those "religious" contentions in the auto world... - pictureguy 11:48:26 09/23/23 (2)

That's the inherent "flaw" with long-term testing/studies... - dark_dave56 03:08:24 09/24/23 (1)

RE: That's the inherent "flaw" with long-term testing/studies... - pictureguy 10:16:31 09/24/23 (0)

RE: motor oil standards - pictureguy 19:04:44 09/20/23 (1)

My car doesn't require it, but it should benefit by it. nt - ghost of olddude55 11:48:06 09/21/23 (0)

GM and Ford use wet timing and/or oil pump drive belts. - ghost of olddude55 17:39:57 09/20/23 (3)

RE: GM and Ford use wet timing and/or oil pump drive belts. - pictureguy 18:56:54 09/20/23 (2)

If you change oil every 3K-5K miles and you don't race the car... - ghost of olddude55 02:55:54 09/21/23 (1)

RE: If you change oil every 3K-5K miles and you don't race the car... - pictureguy 19:31:22 09/22/23 (0)

if only that danged 0W-20 oil were viscous enough to stay IN engines (nt) - mhardy6647 17:31:56 09/20/23 (7)

Check the oil regularly. It's SOP. nt - ghost of olddude55 17:42:01 09/20/23 (6)

RE: Check the oil regularly. It's SOP. nt - pictureguy 18:40:22 09/20/23 (4)

Low tension piston rings, direct injection, cylinder de-activation. - ghost of olddude55 03:00:46 09/21/23 (1)

RE: Low tension piston rings, direct injection, cylinder de-activation. - pictureguy 19:32:39 09/22/23 (0)

Most newer engines (it seems)... - dark_dave56 00:53:07 09/21/23 (1)

RE: Most newer engines (it seems)... - pictureguy 19:35:28 09/22/23 (0)

yup, I learned that with the '06 RAV-4 we used to have (nt) - mhardy6647 18:16:18 09/20/23 (0)

Follow Ups

Zinc dialkyldithiophosphate needed in older cars designed to use that oil - kff 13:26:17 09/21/23 (1)

RE: Zinc dialkyldithiophosphate needed in older cars designed to use that oil - pictureguy 14:12:30 09/21/23 (0)

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