Millers Competition Running In Oil CRO 10w-40 5L

Millers CRO 10w-40 is a quality competition running in oil. Specially formulated to offer excellent protection for new engines, CRO is ideal for use on Mazda MX-5 forged engine builds. Millers have developed this running in oil for modified petrol and diesel applications, helping to speed up the bedding-in process. Using a quality break-in oil helps to bed in piston rings and bores quickly, whilst still offering full protection for your engine. Millers Competition Running In Oil contains additives that allow full load runs for short bursts, meaning CRO is suitable for light use up to 500 miles.