Gardan Oil / Gear Oil Pertamina Rored Cheap Pertamina Oil RORED Murah is a high performance heavy duty gear oil formulated from high quality base oil and Extreme Pressure additives. RORED HDA 90 has been approved by Mercedes Benz 235.0. USE Pertamina RORED HDA 90 oil is used to lubricate the hypoid or spiral bevel gears on axle and motor home / steering box with heavy duty requirements.