Subject	Royal Purple HPS 20w-50 is what I use along with M1 filter.
Posted by	Piranha on June 20, 2019 at 4:56 PM
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In Reply To	1991 nissan 300zx tt motor oil?? posted by amezcuaz32 on June 20, 2019 at 08:37 AM
Message	Hi and welcome to tt.net. Oil has changed from when our Zs came out in the 90s... less zddp/anti wear for emission certification if I remember correctly. If you decide to go with factory recommended weight I’d suggest Mobil One “high mileage” 10w-30, or if you want a higher weight you could also run their 15w50. Both of them are closer to original formulations from back in the day. I wanted a higher weight with the Arizona heat so I switched to 20w-50. Royal Purple is my personal preference and their HPS line also has higher levels of zddp/anti wear. Good luck!
Follow Ups	1991 nissan 300zx tt motor oil?? - amezcuaz32 08:37:34 06/20/19 Welcome. I use 15/50 mobile 1 and royal purple oil filter - bbug 08:58:18 06/20/19 2nd on M1 15W50... keeps oil pressure up in hot climates - vorpalZed 13:23:07 06/20/19 3rd (n/m) - Polish 14:32:28 06/20/19 4th here - Drk93TT 06:09:19 06/21/19 I switched to Castrol Edge 0W40. - not4resaleZ 16:00:27 06/20/19 Using castrol Edge 5W-50 - turisimo66 14:26:40 06/24/19 Mobil1 10W30 for me. Ditto to bbug's comment - you'll - Woodnutz 09:46:47 06/20/19 Shell Rotella T6 5W40 with an OEM filter and crush washer (n/m) - nissubaru 11:04:04 06/20/19 Re: Shell Rotella T6 5W40 with an OEM filter and crush washer - amezcuaz32 13:24:55 06/20/19 “Big blue” oem 55Y filter (n/m) - Z-line 14:43:28 06/20/19 Eneos Sustina 0W50 is what I use in my DD Z32. - MixManMash 11:56:53 06/20/19 I've heard the T6 has more zinc in it than other oils which - nissubaru 14:34:44 06/20/19 You're only looking at one aspect of the oil (i.e. zi - MixManMash 15:09:58 06/20/19 yup... and more Zinc isn't always better - vorpalZed 15:38:05 06/20/19 hipster... (n/m) - vorpalZed 16:35:15 06/20/19 Lol. My oil analyses have shown up exceptional with it. - MixManMash 17:21:20 06/20/19 now BPA free and GMO approved (n/m) - Drk93TT 06:11:51 06/21/19 Re: 1991 nissan 300zx tt motor oil?? (n/m) - amezcuaz32 13:55:29 06/20/19 i use 20w50 amsoil with Wix filter. (n/m) - slayer fan 14:02:36 06/20/19 oh god.... - LJZTT 16:04:46 06/20/19 eh, this is nothing - vorpalZed 16:41:35 06/20/19 I can only imagine - LJZTT 16:44:36 06/20/19 Lol. Agreed. - MixManMash 17:24:03 06/20/19 Some truth. Also, oil formulations, additive packages, etc - MixManMash 17:22:44 06/20/19 I dont disagree - LJZTT 17:35:31 06/20/19 True. Unless you're running your car in temperatures colder - MixManMash 17:49:34 06/20/19 3000 count precale minimum (n/m) - vorpalZed 17:56:58 06/20/19 ...maybe for a hobo! Might as well put me in a burlap sack! (n/m) - LJZTT 13:29:15 06/21/19 I can't point to a failure, but I can point to 22 year old - Polish 18:55:11 06/20/19 I'm switching to Pennzoil because... - Ted (92TT) 18:30:55 06/20/19 Lol. - MixManMash 21:41:00 06/20/19 I personally use olive oil....organic, gluten-free (n/m) - LJZTT 13:37:23 06/21/19 hahahahaaha (n/m) - ForceFedTT 00:56:02 06/25/19 I enjoyed that soap box rant very much so (n/m) - moxie (SF) 01:17:27 06/21/19 I'll be here all week, tip your waitress (n/m) - LJZTT 13:35:30 06/21/19 hahahaha....true (n/m) - ForceFedTT 00:54:03 06/25/19 Royal Purple HPS 20w-50 is what I use along with M1 filter. - Piranha 16:56:46 06/20/19 Amsoil 5W-30 for me. (n/m) - JULIAN 17:58:08 06/20/19 Just realize all oil thickens way too much when it - not4resaleZ 18:56:14 06/20/19 0w too thick? It's the thinnest there is(?) - Barry (NJ) 09:25:14 06/21/19 Yes. The big number of the two is the thickness at - not4resaleZ 10:40:35 06/21/19 Not really... - Barry (NJ) 16:42:01 06/21/19 That’s what I said. They all thicken when they cool. - not4resaleZ 11:31:47 06/23/19 Nonsense. Oil hasn't been 'developed' yet to properly - vorpalZed 23:00:07 06/23/19 Oil changes viscosity when it changes temperature. - not4resaleZ 06:40:12 06/24/19 Yes when it warms it gets thinner, less viscous... - Barry (NJ) 19:39:16 06/25/19 ... but it gets thicker when cold... physics! - vorpalZed 20:56:52 06/25/19 You can park your car if you want, but I'd perfer to - not4resaleZ 12:04:33 06/26/19 You are the one who posted the viscosity data. - not4resaleZ 11:58:37 06/26/19 And that's too thick? (n/m) - Barry (NJ) 13:08:36 06/27/19 The operating viscostiy of a 60 weight oil is between - not4resaleZ 14:10:13 06/27/19 Amsoil 0W-40 for me (n/m) - RICH1 06:56:03 06/21/19 Amsoil 5W-30 with a M1 or K&N filter (n/m) - RobZ32 09:52:37 06/25/19
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