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Engine Oil - Castrol GTX Classic - 20W-50 Conventional (1 Quart)
New formula with high zinc (ZDDP) content.
Specially formulated for classic / collector cars with flat tappet cams or performance modified engines.
API SJ
Not for use in modern engines with catalytic converters.
| Alt. Number: | 20W-50 |
| WH Rack: | 123 |
