Oils, zinc, again

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atruscott
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Re: Oils, zinc, again

Post by atruscott » Fri Feb 09, 2018 6:03 pm

I’ve periodically mused on this subject, and always come back to Shell Rotella (the new version is T4), as per Brad’s recommendation some time ago. I suspect that as very few of us use our vehicles on a daily basis (with notable exceptions) then they don’t really have the opportunity to wear as much as they may have done in the past. Add in that modern lubricants are substantially better quality than the equivalent nomenclature was 30 years ago - and it’s highly possible that our cars are better protected.

One thing I do know is that putting high ZDDP oil or a ZDDP additive in a new engine rebuild is a sucky idea as those rings get nicely coated and won’t seat!

Another reason Rotella works for me is probably an emotional attachment to Shell being a good manufacturer, and it’s price point is lower than Castrol, Valvoline, Mobil etc.
1970 238 Camper OHV
1974 124 Wagon TC
1974 124 Special TC
1975 124 Sport Coupe
1976 124 Sport Spider (The Racer)
1981 Spider 2000 (The Resurrected)
1985 Pininfarina Azzurra
2017 124 Spider Abarth Elaborazione
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baltobernie2
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Re: Oils, zinc, again

Post by baltobernie2 » Fri Feb 09, 2018 8:40 pm

atruscott wrote:
Fri Feb 09, 2018 6:03 pm
Another reason Rotella works for me is probably an emotional attachment to Shell being a good manufacturer ...
Plus, they created the best advertisement in the history of television :D
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jgoodfellow
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Re: Oils, zinc, again

Post by jgoodfellow » Thu Feb 15, 2018 3:55 pm

'84 Pinin Spider Azzurra
'72 124 Sport Spider
Long Island, NY
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mikehynes
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Re: Oils, zinc, again

Post by mikehynes » Fri Feb 16, 2018 5:04 pm

jgoodfellow wrote:
Thu Feb 15, 2018 3:55 pm
Oh Hell Yes...

https://www.youtube.com/watch?v=BnHLMXmghwI
That does it, I'm buying what they are sellin!
Two '80 124 Spiders
Lots of X1/9s
Mike Hynes
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Re: Oils, zinc, again

Post by Spidernut79 » Sun Feb 18, 2018 12:13 pm

I've owned 5 Spiders - no problems whatsoever during my ownership. I did have one Spider with 130,000 miles and an unknown history that the cams were too worn out to reuse. I removed the cams from another motor that had about 115,000 miles and the cam lobes spec'd out almost like new. I've never found a motor with any measurable cylinder wall wear, bearing wear, thrust washer wear, etc. They've all had over 100,000 miles and looked WAY better than my 68 Ford 289 did after 100,000 miles. Change your oil regularly with a quality oil filter (for a Fiat that is every 3,000 miles or 3 months) and change the air filter regularly (every 15,000 miles) and I can see no reason that modern oils would not sufficiently protect the motors.

Opinions are like arm pits. Everyone has them and some of them stink.
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cyber104
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Re: Oils, zinc, again

Post by cyber104 » Wed Feb 21, 2018 8:47 am

atruscott wrote:
Fri Feb 09, 2018 6:03 pm
One thing I do know is that putting high ZDDP oil or a ZDDP additive in a new engine rebuild is a sucky idea as those rings get nicely coated and won’t seat!
Actually that's not entirely true - in fact ZINC laced break in oil and ZINC Moly lube is ABSOLUTELY necessary after a fresh rebuild and on initial startup - especially on an American V8. ZINC is not going to prevent rings from seating
Chris
1982 Fiat Spider
Davidson, NC (formerly from Newark, DE)
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atruscott
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Re: Oils, zinc, again

Post by atruscott » Thu Feb 22, 2018 12:08 am

Ok - on a US V8.... I’ve had especially sucky luck with rings not seating with zinc’d oil though. Maybe it just me. I normally put in regular oil for first start, give the rings a chance to seat - then change it out for run in.
1970 238 Camper OHV
1974 124 Wagon TC
1974 124 Special TC
1975 124 Sport Coupe
1976 124 Sport Spider (The Racer)
1981 Spider 2000 (The Resurrected)
1985 Pininfarina Azzurra
2017 124 Spider Abarth Elaborazione
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QuebecFiatSpider
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Re: Oils, zinc, again

Post by QuebecFiatSpider » Sat Feb 24, 2018 6:15 am

Having that thread discussion in mind, yesterday I went to Canadian Tire to see what was available...

The Shell Rotella Oil is available but I'm asking myself the following question : Which one to pick? Is it a good idea to go with the full or semi synthetic one?

Which one would you guys buy?

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bartigue
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Re: Oils, zinc, again

Post by bartigue » Sat Feb 24, 2018 7:37 am

Oil change frequency on an old car is so high that a full synthetic is just a waste of money.
-----------------------------------------------------------
Brad Artigue
1982 Spider 2000
I've restored, worked on, sold, bartered, and bled for:
1970, 1979, 1980, 1981, 1982 124 Spiders -- 1969, 1970 850 Spiders -- 77 X1/9
http://fiat.artigue.com
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atruscott
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Re: Oils, zinc, again

Post by atruscott » Sun Feb 25, 2018 9:57 pm

T4
1970 238 Camper OHV
1974 124 Wagon TC
1974 124 Special TC
1975 124 Sport Coupe
1976 124 Sport Spider (The Racer)
1981 Spider 2000 (The Resurrected)
1985 Pininfarina Azzurra
2017 124 Spider Abarth Elaborazione
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