The Oscar first competed in the Japanese F3 Championship in 1979, there seems to have been two models, the T1 and the T2. The cars were Toyota powered and were obviously competitive with Syuuroku Sasaki finishing fourth in the championship and winning the opening round at Suzuka. For 1980 a new car the T3 was introduced but results were generally disappointing. 1981 saw further modifications to the car with the emergence of the T3B and T3C, the T3C continuing into 1982 with Yoshiyasu Tachi taking a couple of third places early in the season.
For 1984 another new car appeared, the T4 but results were poor. Nothing daunted the SK86F with its pullrod suspension was the 1986 offering and it was one of their better designs with Hideo Fukuyama taking a win at Tsukuba in the rain and finishing sixth in the Japanese Championship. The SK86F continued into 1987 but it couldn’t compete with the Ralts and Reynards and Oscar disappeared from the F3 scene.

Drivers:

1979
T2
Syuuroku Sasaki, Katsuhiko Sugiura.

T1
Syuuji Kanemaru, Katsuhiko Sugiura, Fukumi Koutake, Syuuroku Sasaki.

1980
T3
Tsunehisa Asai.

T1
Masao Segawa, Tomiko Yoshikawa.

1981
T3C
Tsunehisa Asai

T3B
Tsunehisa Asai, Hideo Fukuyama, Yoshiyasu Tachi, Tomiko Yoshikawa.

1982 T3C
Hideo Fukuyama, Yoshiyasu Tachi.

1983 T3C
Yoshiyasu Tachi.

1984 T4
Kazuhiko Miyake.

1985
T4
Hisatoyo Gotou.

T1
Yoshitaka Matsumoto.

1986
SK86F
Hideo Fukuyama, Hisatoyo Gotou.

T4
Shinji Yoshikawa.

T1
Yoshitaka Matsumoto.

1987 SK86F
Hisatoyo Gotou, Syuuroku Sasaki, Takashi Yamada