Subject	Re: What weight engine oil?
Posted by	sparkie on June 21, 2010 at 11:59 AM
	This message has been viewed 639 times.
In Reply To	What weight engine oil? posted by Ash's Z on June 20, 2010 at 04:45 PM
Message	my rod bearings looked brand new with about 12k DD miles when I took the engine apart. However the main #3 and the thrust bearing had uneven wear with copper showing and worn into the thrust face of the crank. I was running mostly conventional 20W50 race oil for every 1k miles. I suspect my bearing problem was caused by improper crank play and/or no AC belt. I always had metallic flakes in the oil change. Since I rebuilt the engine and the break-in, I've been using synthetic 10w30 race oil for every 3k miles. I've had little to no metallic flakes in the oil change. The oil pressure has dropped about 5psi across. So I'm happy about it except for the stubborn lifter tick. www.ztechz.net ICQ # 14337317
Follow Ups	What weight engine oil? - Ash's Z 16:45:29 06/20/10 answers: zero failures, mobil 10w30, 35,000miles many - sawbonez 17:23:29 06/20/10 Re: answers: zero failures, mobil 10w30, 35,000miles many - Ash's Z 17:36:01 06/20/10 Hey Ash - ConVerTT 17:27:05 06/20/10 From my experience, the high compression NA engines being - Ash's Z 17:43:53 06/20/10 Yep, the original ConVerTT is like mid 300s with current mod - ConVerTT 18:19:47 06/20/10 Re: From my experience, the high compression NA engines being - Dustin@Z1 08:40:57 06/21/10 M3? (n/m) - ConVerTT 16:59:34 06/21/10 HA! No its a Z32. '92 Slicktop. Doing something a little - Dustin@Z1 00:09:34 06/22/10 Sounds like! Do tell? (n/m) - ConVerTT 13:45:40 06/22/10 I can't speak to that HP, but an article floats here sometim - CoHPhasor 18:00:41 06/20/10 Here are my bearings - hunterg 18:16:43 06/20/10 Side note - hunterg 18:20:24 06/20/10 0w40, or the closest you can get to that - BobbyT 18:54:12 06/20/10 I think Mobil1 Racing 0w50 would be ideal - aliaZ 09:07:21 06/21/10 2nd Bobby t. read the article by Dr. Hass ( if I recall).. - tognot 19:11:32 06/20/10 What? Lighter or heavier? (n/m) - ConVerTT 20:57:58 06/20/10 Lighter flows more, heavier protects, if it gets there - BobbyT 21:29:37 06/20/10 do you think that newer oils that have a lower zddp - slayer fan 21:37:44 06/20/10 I don't think they are bad for our engines, just not as good - not4resaleZ 22:01:56 06/20/10 Pennzoil GT 25W50 is supposed to have 1800ppm of zddp. - aquariuscsm 01:13:01 06/21/10 When you replaced your OEM bearings at 15k, did you - Got a Birth certificate?? 00:54:38 06/21/10 That is a dangerous question to ask. - Ashman2k2 01:35:08 06/21/10 Hey Ash!! Do you remember when I detonated my TT - eriksu9 09:14:02 06/21/10 20w is unequivocally worse on your engine - BobbyT 15:21:49 06/21/10 Why is Nissan showing that a 20W-40 or 20W-50 can be used - Ash's Z 20:35:18 06/21/10 Just because it CAN be. (n/m) - Ashman2k2 20:43:18 06/21/10 Oh, I should also add I am @ 472rwhp on race - eriksu9 09:15:44 06/21/10 I've been using Mobil 1 15W-50. I don't have any evidence - SlicktopTT 09:45:18 06/21/10 Re: What weight engine oil? - sparkie 11:59:17 06/21/10
Post a Followup	You cannot reply to this message because you are not logged in.