[DeTomaso] How much ZDDP?

Lee, Patrick Q patrick.q.lee at rbc.com
Thu Feb 24 12:21:54 EST 2011

Redline makes a racing oil with 2200-2400 ppm of zinc and phosphorous
but with a TBN number of 2 or so, it does not
have enough detergent to be a viable street oil, you'd have to change
your oil at 500 miles or so.
Their motor oils have TBNs in the 10+ range with zinc and phosphorous
around 1300 ppm.
Since the oils are compatible, a 50-50 mix should give you the zinc
number you are looking for and maybe the 1500-2000 mile
drain interval? Not as elegant as adding the ZDDP but another solution.

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