 Motor oil, What weight? |
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| 911914 |
 Dec 27 2004, 11:33 PM
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Member  Group: Members Posts: 51 Joined: 24-December 04 From: Vancouver, Washington Member No.: 3,334  |
I am sure this has been hashed out here many times before and I don't want to start another oil thread but I be a newbie. Car I just purchased was rebuilt about 20k ago ('74 2.o) and the records show 15-40 weight has been used since rebuild and at all services. Now is this not a heavy diesel weight oil? I use this weight in my BMW 535i as recommended from factory, but a small air cooled VW mill using this heavy weight? Doesn't sound right to me. Clue me in please. Oh, engine is dual Weber's and a Web cam.
Thanks. |
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| type11969 |
Dec 29 2004, 10:19 AM
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Senior Member Group: Members Posts: 1,231 Joined: 2-December 03 From: Collingswood, NJ Member No.: 1,410 Region Association: North East States |
yeah, my understanding is the same as yours Tom. I figure that as long as you don't have a pressure problem, use a thinner oil to get it where it needs to be sooner at startup, instead of just relying on whatever residual film is on the parts from the last time the engine was run. And with the oil tech of today, the oil can have a stable broader range than when these cars were made, so you can have you cake and eat it too with a thin oil at start up, and a thicker once warm.
Take a look at the passages in the case that the oil has to go through and pour out some 20w50 on a cold day. If that doesn't convince you that a thinner oil might be better . . . Well you certainly won't have a pressure problem during cold starting, but ask yourself if you really think that oil is going to make it anywhere quickly. Just my .02. |
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Posts in this topic
911914 Motor oil Dec 27 2004, 11:33 PM
markb I use 20/50 in the 914s & the Bus (2.4/6). Dec 28 2004, 12:23 AM 911914 Thanks Mark, I too use the 20-50 (Castrol) in my A... Dec 28 2004, 12:40 AM ChrisReale 15-40 is prolly Shell Rotella, which is a good oil... Dec 28 2004, 04:20 AM type11969 I use 5w-30 and have plenty of pressure all around... Dec 28 2004, 07:12 AM 911914 New twist to my oil question. Called the PO engin... Dec 28 2004, 01:18 PM Root_Werks Woah you guys, you are all giving great advise, bu... Dec 28 2004, 01:30 PM SirAndy Dec 28 2004, 01:32 PM Rhodes71/914 I've always used 10-40 in all my VW aircooled ... Dec 28 2004, 01:54 PM 7391420 kendal straight 30 in winter, straight 50 in summ... Dec 28 2004, 02:04 PM Cap'n Krusty <... Dec 28 2004, 03:06 PM type11969 how can you say it is too thin if I have plenty of... Dec 28 2004, 03:23 PM SirAndy htt... Dec 28 2004, 04:40 PM ChrisReale Forget the weight, just make sure you use oil, per... Dec 28 2004, 11:46 PM dlo914 20w50 / W = Winter NOT Weight ... Dec 29 2004, 12:42 AM dlo914 use higher winter if your region is prone to very ... Dec 29 2004, 12:46 AM Tom73 My understanding has always been that a
10w30
wi... Dec 29 2004, 09:56 AM rdauenhauer So what about the "newer car" spec 0-40 syn oils (... Dec 29 2004, 10:32 AM type11969 The problem I have with mobil one in a t1 or a t4 ... Dec 29 2004, 11:21 AM Steve According to Bruce Anderson in Tech notes II, this... Dec 29 2004, 11:41 AM Aaron Cox larger number = thicker oil right?
50= THICK
10= ... Dec 29 2004, 11:45 AM Steve The higher the number the thicker the oil.
I remem... Dec 29 2004, 11:50 AM type11969 I seem to remember Jake stating that he had proble... Dec 29 2004, 12:26 PM dlo914 http://www.914world.com/bbs... Dec 29 2004, 12:29 PM Tom73 Dec 29 2004, 05:25 PM
Steve Dec 29 2004, 08:22 PM |
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