Most 23rd Fastest Laps in a Season

Fastest Lap position:

Pos	Lubricant Manufacturer	Year	23rd Fastest Laps in a Season
1	BP	1991	11
2	Elf	1994	8
	Agip	1986	8
	Shell	1984	8
5	Agip	1985	7
6	BP	1990	6
6	Mobil	1989	6
8	Elf	1979	5
	Agip	1993	5
	Valvoline	1982	5
	BP	1992	5
	Valvoline	1983	5
	Elf	1990	5
	Valvoline	1981	5
15	Agip	1990	4
	Agip	1991	4
	Agip	1989	4
	Elf	1995	4
	Agip	1987	4
	Elf	1993	4
	Shell	1985	4
	Agip	1992	4
	Agip	1983	4
	Agip	1995	4
25	Shell	1988	3
	Agip	1994	3
	Fina	1976	3
	Sasol	1992	3
	Valvoline	1988	3
	Castrol	1987	3
	Essex	1979	3
	Elf	1988	3
	Sasol	1993	3
34	Elf	1981	2
	Mobil	1994	2
	BP	1987	2
	Elf	1987	2
	BP	1993	2
	Elf	1992	2
	BP	1989	2
	BP	1983	2
	Castrol	1985	2
	Agip	1988	2
	Shell	1983	2
	Agip	1984	2
	Agip	1980	2
47	Unipart	1989	1
	BP	1986	1
	BP	1988	1
	Valvoline	1980	1
	Mobil	1980	1
	Shell	1994	1
	Mobil	1995	1
	Mobil	1988	1
	Elf	1977	1
	Antar	1989	1
	Texaco	1978	1
	Elf	1983	1
	Motul	1974	1
	Castrol	1986	1
	Elf	1980	1
	STP	1988	1
	Shell	1978	1
	Elf	1985	1
	Shell	1970	1
	Castrol	1989	1
	BP	1981	1
	Shell	1979	1
	Duckhams	1974	1
	Shell	1961	1
	Fina	1974	1
	Shell	1991	1
	BP	1972	1
	Shell	1982	1
	Elf	1986	1
	Shell	1987	1
	Valvoline	1979	1
	Shell	1986	1

Fastest Lap position: