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Oil and engine care
#1
Penrite or Purple or other?

Hi all - would you hel;p a useless limey  Tongue

Mine has the 351 Cleveland  36000 miles old "M" code piece of loveliness -- but I have this car in UK temps typically between 40°F  (5 °C) and 90°F (30°C summer) 

[Image: top-stang.jpg]
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#2
Look for an oil with about 1400 PPM Zinc and 1300 PPM Phosphorus. Assuming factory bearing clearances, a 10W30 or 10W40 weight oil should be good. I don't know what is available in the UK so I can't help there. Good looking car. Chuck
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#3
Hello and welcome from an ex limey, now living in SW Ontario Canada.
In my pretty much stock 351C M code, I run Castrol 10W30 with a bottle of zinc additive. No idea if you can get zinc additive there, but I know you can get Castrol oils.
Geoff.

I learn something new every day!
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#4
Well  I managed to find these two based on c9zx's advice  Chin

5W50 Castrol Edge with Syntec API SN, synthetic
zinc = 1252 ppm
phos = 1197 ppm
ZDDP = 1200 ppm

5W30 Royal Purple XPR synthetic
zinc = 1421 ppm
phos = 1338 ppm
ZDDP = 1300 ppm


[Image: siggy.jpg]

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#5
(01-12-2019, 01:46 PM)1sostatic Wrote: Well  I managed to find these two based on c9zx's advice  Chin

5W50 Castrol Edge with Syntec API SN, synthetic
zinc = 1252 ppm
phos = 1197 ppm
ZDDP = 1200 ppm

5W30 Royal Purple XPR synthetic
zinc = 1421 ppm
phos = 1338 ppm
ZDDP = 1300 ppm

 Only one problem, Synthetic. I think most will agree these old engines don't do well on synthetic oils, rear end lube and tranny lube unless they have been built to take it. I know some use it, but when my engine was rebuilt with stock parts and clearances, the builder told me NOT to use synthetic oils,  but stick with 10W30 conventional oil. Anyway, your car, your decision.
Geoff.

I learn something new every day!
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#6
Invested a lot of $$ in the rebuild of my original 429cj, C-6 transmission and trac-lok rear. My engine builder whom is a renowned builder and racer here in Southern Ontario was very specific to ensure I used synthetic fluids in all three. Made it so...
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#7
I'm not sure about getting it in the UK, Shell Rotella originally intended for diesel trucks is an excellent oil with a higher zinc content
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#8
(01-12-2019, 03:01 PM)Stanglover Wrote:
(01-12-2019, 01:46 PM)1sostatic Wrote: Well  I managed to find these two based on c9zx's advice  Chin

5W50 Castrol Edge with Syntec API SN, synthetic
zinc = 1252 ppm
phos = 1197 ppm
ZDDP = 1200 ppm

5W30 Royal Purple XPR synthetic
zinc = 1421 ppm
phos = 1338 ppm
ZDDP = 1300 ppm

 Only one problem, Synthetic. I think most will agree these old engines don't do well on synthetic oils, rear end lube and tranny lube unless they have been built to take it. I know some use it, but when my engine was rebuilt with stock parts and clearances, the builder told me NOT to use synthetic oils,  but stick with 10W30 conventional oil. Anyway, your car, your decision.
Geoff.

Geoff, Search on "synthetic oil myths". I've successfully run synthetic oil in everything (engines, transmissions, differentials, mowers, and yard tools) I own since 1982 without any problems. Chuck
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#9
(01-13-2019, 08:55 AM)c9zx Wrote:
(01-12-2019, 03:01 PM)Stanglover Wrote:
(01-12-2019, 01:46 PM)1sostatic Wrote: Well  I managed to find these two based on c9zx's advice  Chin

5W50 Castrol Edge with Syntec API SN, synthetic
zinc = 1252 ppm
phos = 1197 ppm
ZDDP = 1200 ppm

5W30 Royal Purple XPR synthetic
zinc = 1421 ppm
phos = 1338 ppm
ZDDP = 1300 ppm

 Only one problem, Synthetic. I think most will agree these old engines don't do well on synthetic oils, rear end lube and tranny lube unless they have been built to take it. I know some use it, but when my engine was rebuilt with stock parts and clearances, the builder told me NOT to use synthetic oils,  but stick with 10W30 conventional oil. Anyway, your car, your decision.
Geoff.

Geoff, Search on "synthetic oil myths". I've successfully run synthetic oil in everything (engines, transmissions, differentials, mowers, and yard tools) I own since 1982 without any problems. Chuck
 Ok, so it seems I'm getting ganged up against here.
 Like anything else, when new technology comes along, there is resistance to it and often for the wrong reasons. Or is it I'm just 'old school'.
 I'm am certainly not an engine expert, not even close, so I rely on the expertise of others. In this case that was my engine builder, who is also renowned in my area. His advice was to use conventional 10W30 oil in the 351, so that's what I do. Besides, most of our cars only do around 1500 -3000 miles /year and the oil gets changed every spring, or at least mine does, so why do I need to spend good money on oil that is basically getting wasted?
 For my car, I'm sticking with conventional oil.
 Geoff.

I learn something new every day!
[+] 1 user Likes Stanglover's post
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#10
Valvoline VR1 racing oil 10W30.

mike

[Image: 1_11_11_13_11_50_27.png]
[+] 1 user Likes goodnigh's post
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