CREATE TABLE table_name_4 (grid NUMBER, time_retired VARCHAR2, laps VARCHAR2)

What is the high grid that has a Time/Retired of +6 laps, and under 69 laps?
SELECT MAX(grid) FROM table_name_4 WHERE time_retired = "+6 laps" AND laps < 69
SELECT MAX("grid") FROM "table_name_4" WHERE "+6 laps" = "time_retired" AND "laps" < 69