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Oil....again

 
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agfisher  



Joined: 09 May 2007
Posts: 449
Location: West Hartford, CT

PostPosted: Fri Oct 28, 2016 1:35 pm    Post subject: Oil....again Reply with quote

I see a lot of people are recommending Conventional 20W50 for NA 2.0s that are going to be summer driven. The issue I'm having though is what brand and where to find it.

I hear a lot of people say go with Mobil 1 but all I can find from them is 20W50 V-Twin Synth. I also see a Castrol GTX High Milage that sounds right but some people didn't think Castrol was that good (Again, this is just stuff I've been reading).

What oil are you guys finding and what weight are you using?
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Power Tryp  



Joined: 16 Apr 2009
Posts: 430
Location: Calgary, Alberta

PostPosted: Fri Oct 28, 2016 2:24 pm    Post subject: Reply with quote

I use what Ideola sells because I know he's been successfully been using it in his own cars for quite some time now.

http://garage.ideola.com/prod-Supplies.html#motoroil

However, if I didn't have access to that i've been give the impression that some people use Shell Rotella T diesel oil with satisfactory results.

I'm sure Rasta will be here to give you his recommendation soon, he loves oil threads.
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agfisher  



Joined: 09 May 2007
Posts: 449
Location: West Hartford, CT

PostPosted: Sat Oct 29, 2016 12:31 am    Post subject: Reply with quote

I see the Brad Penn is partially synthetic. Is that OK for a high mileage engine? Everything I've read says Dino only.
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Rasta Monsta  



Joined: 12 Jul 2006
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Location: PacNW

PostPosted: Sat Oct 29, 2016 1:00 am    Post subject: Reply with quote

Power Tryp wrote:
I'm sure Rasta will be here to give you his recommendation soon, he loves oil threads.




Rasta's choice. High zinc, increased power and economy over 20w50.
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agfisher  



Joined: 09 May 2007
Posts: 449
Location: West Hartford, CT

PostPosted: Sat Oct 29, 2016 1:15 am    Post subject: Reply with quote

I see it's synthetic. That's not great for my old engine, correct?
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Power Tryp  



Joined: 16 Apr 2009
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Location: Calgary, Alberta

PostPosted: Sat Oct 29, 2016 1:19 am    Post subject: Reply with quote

What mileage are we talking about specifically? I'm guessing that you odometer has rolled over at least once so we're in the 100k range?
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agfisher  



Joined: 09 May 2007
Posts: 449
Location: West Hartford, CT

PostPosted: Sat Oct 29, 2016 1:22 am    Post subject: Reply with quote

Power Tryp wrote:
What mileage are we talking about specifically? I'm guessing that you odometer has rolled over at least once so we're in the 100k range?


One flip over, approx 35,000 so I'd say 135K. The car has been in my family since bought new in 77. No rebuild. Been sitting unused since 87-88. Now that my twins are older finally have time to start get this thing rolling.
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Rasta Monsta  



Joined: 12 Jul 2006
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PostPosted: Sat Oct 29, 2016 1:47 am    Post subject: Reply with quote

"Synthetic not good for old motors" is an old mechanic's tale, IMO.

Synth (especially high quality synth like LM) has properties that decelerate wear. The only arguable downside is that some synthetics have high detergent (just as some dino oils do), which can cause shaft seals to leak if the only thing holding a seal is deposits.

On a toofah, though, the positive crank venting is fairly aggressive, so you really shouldn't encounter a problem.
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Kenodog  



Joined: 25 Jun 2003
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Location: Vancouver,B.C.

PostPosted: Sat Oct 29, 2016 2:05 am    Post subject: Reply with quote

Synthetic oil is also 'creepier' than dino oils. I put some in a new motorcycle and the next day had a pool under the bike. Had to pull the side cover off and use some Hylomar to reseal it. It was the same weight synthetic as dino but it has better wicking capabilities apparently meaning it may drip where dino oil will not.



Me
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Last edited by Kenodog on Sat Oct 29, 2016 2:34 am; edited 1 time in total
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Power Tryp  



Joined: 16 Apr 2009
Posts: 430
Location: Calgary, Alberta

PostPosted: Sat Oct 29, 2016 2:27 am    Post subject: Reply with quote

Wow, that's impressive. Tbh, your biggest issue is going to be seals.

Personally on an engine that old with no rebuild I would want to re-seal it as that is where a synthetic would be you biggest problem as it tends to flow better across all temperature ranges and will most likely seep past the old rubber.

https://m.youtube.com/watch?v=Se8-W7rK0H4

https://m.youtube.com/watch?v=tYkg0oDUXs8

Those will clear up some of the misinformation on modern synthetics.
And there's a detailed writeup from a Corvair owner which leads us effectively to what Rasta has suggested.

http://www.widman.biz/Corvair/English/Links/Oil.html
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prophead  



Joined: 12 Jul 2016
Posts: 30
Location: Falkirk, Scotland

PostPosted: Sat Oct 29, 2016 6:42 am    Post subject: Reply with quote

Valvoline VR Racing 20w/50
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joecitizennn  



Joined: 12 Sep 2005
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Location: no mans land

PostPosted: Sat Oct 29, 2016 9:02 am    Post subject: Reply with quote

Rasta Monsta wrote:


Rasta's choice. High zinc, increased power and economy over 20w50.


Switching oil to get more power... I did that. Started running 5 w 30 in a 924. Only problem was the oil would only fit in a corvette engine. Now the power is too high
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Last edited by joecitizennn on Sat Oct 29, 2016 12:01 pm; edited 1 time in total
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nickthompson  



Joined: 26 Mar 2013
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Location: Central Georgia

PostPosted: Sat Oct 29, 2016 10:29 am    Post subject: Reply with quote

Rasta Monsta wrote:
Power Tryp wrote:
I'm sure Rasta will be here to give you his recommendation soon, he loves oil threads.




Rasta's choice. High zinc, increased power and economy over 20w50.


I bet that would be great in a 1.8t
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Glemon  



Joined: 05 Jan 2016
Posts: 165
Location: Lincoln, NE

PostPosted: Sat Oct 29, 2016 11:19 pm    Post subject: Reply with quote

Lots of oil threads in the old British car world I have been in for a lot longer than the Porsche world, lots of opinions, but Valvoline VR1 (getting a little harder to find but may still be locally available) and Brad Penn generally get the nod for best oils for high zddp content to prevent cam lobe wear.
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Paul  



Joined: 02 Nov 2002
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PostPosted: Sat Oct 29, 2016 11:23 pm    Post subject: Reply with quote

I use Pennzoil dino 10w-40 year round and have for decades in my 924s. Why are we worried about cam wear, has anyone worn one out?
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