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See also: | Drivers, Teams, Entrants, Car Models, Car Manufacturers, Engine Manufacturers, Tyre Manufacturers, Car Numbers, Sponsors, Sponsor Industries, Designers |
Retirement Ratio
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until 1951 ACF GP
Include Indy 500 races
Include non-championship races
Pos | Lubricant Manufacturer | Retirement Ratio | Retirements | Entries |
1 | Shell | 32.56% | 14 | 43 |
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