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#4758270 - 05/15/18 09:25 PM trying to choose an oil V8 Ford 351 Cleveland
drew2 Offline


Registered: 05/01/13
Posts: 19
Loc: NSW, Australia
Hi all,
The aussie lube guides for my 351 Cleveland engine are confusing me a bit. Just looked on Penrite lube checker and they're recommending 20W-60 and even 25W-70 for this engine! I know that high zinc oils are recommended for these old tappet motors, but gee this heavy weight has me a little concerned, especially when the US sites seem to recommend 10w-30 and 15w-40. From looking on the BITOG forum, I can't see anyone running anything like this Penrite HPR30 20w-60 in their cleveland V8.
Can anyone give me some pointers about oil choice please?
regards,
Andrew

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#4758274 - 05/15/18 09:31 PM Re: trying to choose an oil V8 Ford 351 Cleveland [Re: drew2]
addyguy Offline


Registered: 09/08/05
Posts: 14309
Loc: Canada
Good quality 15W-40 seems about right.
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#4758290 - 05/15/18 10:02 PM Re: trying to choose an oil V8 Ford 351 Cleveland [Re: drew2]
tomcat27 Online   content


Registered: 06/25/09
Posts: 3645
Loc: Chicago, IL
has it been rebuilt? does it have stock bearing clearances? if its stock, I'd say 10w-40, 15w40, or 20w-50 would all be fine.
I run 20w-50 in my built 351W, but my bearing clearances were set on the looser side (.035)
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#4758298 - 05/15/18 10:13 PM Re: trying to choose an oil V8 Ford 351 Cleveland [Re: tomcat27]
drew2 Offline


Registered: 05/01/13
Posts: 19
Loc: NSW, Australia
It was rebuilt, but about more than 10 years ago and I don't know anything about the build. The car was sitting in a shed when i got hold of it. I would say it is just stock clearances....the motor is in an old Toyota landcruiser.

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#4758311 - 05/15/18 10:46 PM Re: trying to choose an oil V8 Ford 351 Cleveland [Re: drew2]
andyd Online   content


Registered: 09/25/04
Posts: 7439
Loc: Marshfield , MA
Kowabunga a 351 Cleavland. I had one in a '73 Torino. A better than average Ford V8. In a Land Cruiser! How is the rest of it? What did You guys run in them, back in the day? Think I used 10w40. But its cooler than NSW. 20w 50 or thicker? Izzit carbed? Def 20w50 or better.
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#4758315 - 05/15/18 10:56 PM Re: trying to choose an oil V8 Ford 351 Cleveland [Re: drew2]
JeffKeryk Online   content


Registered: 01/09/10
Posts: 372
Loc: Los Gatos, CA
A good 10w30. If she goes through oil, maybe 10w40 or 20w50.
I have used Rotella 15w40 in my BB Chevy and BB Oldsey.
Probably switch back to 10w30. Zinc should be around 1100 PPM; higher if the springs are higher rate.

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#4758318 - 05/15/18 10:59 PM Re: trying to choose an oil V8 Ford 351 Cleveland [Re: drew2]
Shannow Offline


Registered: 12/12/02
Posts: 40503
Loc: 'Stralia
20W50 was pretty standard throughout the years that the Clevo was being run.

Don't take the "plus 10 path"...you don't need to.

Caltex recommend 15W-40s for the 351s...that's more than adequate.

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#4758382 - 05/16/18 03:47 AM Re: trying to choose an oil V8 Ford 351 Cleveland [Re: drew2]
Shannow Offline


Registered: 12/12/02
Posts: 40503
Loc: 'Stralia
Which bit of NSW ?

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#4758476 - 05/16/18 07:21 AM Re: trying to choose an oil V8 Ford 351 Cleveland [Re: drew2]
supercity Offline


Registered: 06/12/12
Posts: 1161
Loc: Australia
I think you'll find most oil marketers except Penrite will recommend 15w-40 and 20w-50.

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#4758482 - 05/16/18 07:29 AM Re: trying to choose an oil V8 Ford 351 Cleveland [Re: drew2]
SR5 Offline


Registered: 07/07/15
Posts: 4581
Loc: Down Under
I would use Penrite Vantage 15W40 Semi-Synthetic
- Spec API SN/CF, ACEA A3/B4, VW 502 00 / 505 00, RN 0700 / 0710
- KV40 Viscosity = 109 cSt
- KV100 Viscosity = 14.8 cSt
- Cold Cranking at -20C = 4969 cP
- TBN = 10.1
- Zinc = 1090 ppm

It has a solid zinc & TBN package, ample up to date specs, in a Group II / III base oil package. Also as Penrite have said, they promise a minimum of 20% (if not more) Group III in all their semi-synthetics.
_________________________
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#4758498 - 05/16/18 07:40 AM Re: trying to choose an oil V8 Ford 351 Cleveland [Re: drew2]
drew2 Offline


Registered: 05/01/13
Posts: 19
Loc: NSW, Australia
Thanks very much for the help. Im in the Blue Mountains, but not cold where I am. The engine seems in ok condition, especially considering it sat still for a long while. The rest of the FJ40 cruiser needs a bit of work but Im having fun tinkering with it. Yeah the 20w60 from Penrite seems to get ok reports and has a bit of a following but gee its bloody heavy stuff!

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#4758501 - 05/16/18 07:48 AM Re: trying to choose an oil V8 Ford 351 Cleveland [Re: drew2]
Shannow Offline


Registered: 12/12/02
Posts: 40503
Loc: 'Stralia
Lithgow here...I've done 25W70 through a winter...it won't hurt anything, but simply don't go there...

SR5's recommendation is very good, and very good value.

Do their 10W40 racing if you have spare coin

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#4758540 - 05/16/18 08:46 AM Re: trying to choose an oil V8 Ford 351 Cleveland [Re: drew2]
drew2 Offline


Registered: 05/01/13
Posts: 19
Loc: NSW, Australia
Well we're not too far away, Im in Springwood.
I like the sound of SR5's suggestion of Penrite Vantage 15w40. The zinc package seems reasonably high, although less than the 1600ppm of the hpr30

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#4758544 - 05/16/18 08:48 AM Re: trying to choose an oil V8 Ford 351 Cleveland [Re: drew2]
Shannow Offline


Registered: 12/12/02
Posts: 40503
Loc: 'Stralia
Hi nearly neighbour.

The vantage has more than enough for your Toy

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#4759088 - 05/16/18 06:42 PM Re: trying to choose an oil V8 Ford 351 Cleveland [Re: drew2]
ValkyrieIS21 Offline


Registered: 11/11/17
Posts: 7
Loc: MI
I just asked my brother last week this question as I purchased my dads 81 ford pickup when he passed which I believe has a rebuilt 351 in it. I thought my dad used a straight 30 weight oil in it. So I should be able to use these suggested above? I am also from MI and only drive in summer.


Edited by ValkyrieIS21 (05/16/18 06:46 PM)
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