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Yes, I had the catalytic converters installed. I don't think the extra zinc is that big of a deal considering Mobil 1 is a factory fill for a lot of other cars.
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Track key does not disable any emissions protection. It could not be designed to do so or else it would not have been able to get CARB exemption.2012-Boss said:I was wrong about which component of the ZDDP additive package was reduced in the Ford specification. It was the phosphorous that is reduced, again for catalytic converter protection. The ZDDP package primarily contains zinc and phosphorous for wear reduction.
Amsoil has a decent discussion on the topic:
https://www.amsoil.com/newsstand/classic-and-vintage/articles/reduced-zddp-and-wear-protection/
I have a restored 1970 442, 4 speed, big block car with an old school flat tappet camshaft. Finding a motor oil with a high enough zinc and phosphorous content to protect the cam lobes and lifters is a real issue. I either need to add a ZDDP package to an off the shelf synthetic like Mobil 1 or buy a specialty oil from Brad Penn or Joe Gibb's Driven line of products.
If this is a street driven vehicle, Castrol makes a synthetic 5W50 that goes on sale several times a year that meets the Ford specifications.
Personally, and party based on oil analysis discussions on Bob is the Oil Guy, I prefer the Mobil 1 5W50 to Motorcraft or Castro products. It appears that the Mobil 1 is more shear resistant over time.
If this is a track driven car, I definitely wouldn't worry about the extra phosphorous damaging / reducing the efficiency of a catalytic converter. Trackey disables the catalytic converter over temp protection, so you are much more likely to cook a cat on track than you are damaging one using Mobil 1.
BigTaco said:Track key does not disable any emissions protection. It could not be designed to do so or else it would not have been able to get CARB exemption.
https://arb.ca.gov/msprog/aftermkt/devices/eo/D-598-14.pdf