For the 19th consecutive day on Tuesday, the prices of petrol and diesel have remained static under the daily price revision mechanism followed by oil marketing companies. The diesel prices were also unchanged in the capital at Rs 86.67 a litre. The pump price of petrol in Delhi, which fell to Rs 103.97 a litre at 6 a.m on November 4 from previous day's level of Rs 110.04 a litre, remained the same on Tuesday.