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API American petroleum institute (API) has been at the front of development for petroleum and petrochemical equipment and operating standards for the last 75 years and more. API has over 500 specification standards based on their collective wisdom and extensive testing, all in order for people to find the right oil for the job and protect equipment and engines during operation. |
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API Engine Oils If you have a petrol or diesel engine and are looking for a specific API oil specification then you will find Opie Oils extensive range below. Making sure that you get the correct oil for your vehicle will increase the life span, the performance and fuel economy output of your vehicle.  |
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API Gear Oils American Petroleum Institute (API) have a number of gearbox specifications that are highly regarded within the motoring world, if you are looking for a specific API oil specification then you will find Opie Oils extensive range below. Making sure that you get the correct oil for your vehicle will increase the life span, the performance and shift quality of your gearbox. |
