TwinTurbo.NET: Nissan 300ZX forum - Still running 20W50 RP per SZs recommendation (n/m)
Subject
Still running 20W50 RP per SZs recommendation (n/m)
Posted by
ZXRider
on September 08, 2018 at 5:08 PM
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In Reply To
RP 20W-50 HPS motor oil...still a fave with members ?
posted by TTkeeper
on September 08, 2018 at 10:09 AM
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RP 20W-50 HPS motor oil...still a fave with members ?
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TTkeeper
10:09:29 09/08/18
I would go with a 0W50. Less wear on startup.
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MixManMash
10:12:13 09/08/18
what about summer heat protection..higher wt ?
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TTkeeper
10:19:57 09/08/18
Thick 50 weight oil is exactly what you want for heat
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Polish
13:31:36 09/08/18
RP makes a 5W30 in the HPS formula...ok for winter?
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TTkeeper
13:13:27 09/11/18
That would be fine, but I do think they make a 5w40
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Polish
19:16:01 09/11/18
unfortunately, their 5w40 is not HPS series....
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TTkeeper
13:18:05 09/12/18
I'd still it 5w-40 or 5w-50 over 5w-30
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Polish
16:09:28 09/12/18
What temperatures were you starting your Z in
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Polish
13:37:01 09/08/18
I was running 15W50. Temperatures mostly in the 70s to 80s.
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MixManMash
09:18:49 09/09/18
What did the oil analysis show on the 15W-50? Any
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Tanley (ATL)
13:25:28 09/09/18
Yes. Wear elements had gone down. A lot of wear happens
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MixManMash
14:59:23 09/09/18
it keeps my lifters from chattering (n/m)
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zantar
10:31:01 09/08/18
Rotella T6...cheap and good (n/m)
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The Hawk
12:50:29 09/08/18
I 2nd this. Have been running T6 in all my cars for 5+ years (n/m)
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WhiTTe Z
09:39:05 09/11/18
Any problems with your cats in those 5+ years?
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Mr.Stacy
10:23:50 09/11/18
No cat problems to report (n/m)
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WhiTTe Z
16:54:25 09/12/18
I still recommend Mobil1 5w-50 (which is more like a 5w-45)
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Polish
14:24:48 09/08/18
For the summer I use Liqui-Moly 10W60, just switched to
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RAGTPZ
16:56:29 09/08/18
Still running 20W50 RP per SZs recommendation (n/m) -
ZXRider
17:08:16 09/08/18
Did they give info/reasoning as to why they recommended?
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Waco300zx(DFW)
09:39:03 09/11/18
Yes (n/m)
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Piranha
20:37:10 09/08/18
I was, but didn't see much difference in the oil
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Tanley (ATL)
13:55:07 09/09/18
When cold, the 15W50 will pump up faster than the 20W50. (n/m)
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MixManMash
15:01:42 09/09/18
How cold? below 32 deg. F ? (n/m)
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TTkeeper
17:45:46 09/09/18
Even 90 deg. F, 15W50 is going to pump up faster than 20W50. (n/m)
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MixManMash
18:29:41 09/09/18
The thicker oil creates better film between the parts
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ZXRider
11:31:19 09/10/18
Not necessarily true. I have seen 0W40 stick to surfaces
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MixManMash
18:53:42 09/10/18
Re: RP 20W-50 HPS motor oil...still a fave with members ?
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sasha
13:43:31 09/11/18
After doing oil changes on my M3 I'm a fan of liqui moly
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SkiFly01
10:23:23 09/12/18
Some research I'd done...
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Barry (NJ)
14:07:35 09/13/18
That ash content of Mobil 1 makes me nervous...
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TTkeeper
16:50:55 09/13/18
Well, the blanks in the chart are not zeros...
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Barry (NJ)
09:08:25 09/14/18
You are correct. As engine temps rise, oil viscosity decreas
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Polish
13:20:15 09/16/18
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