Adding Oil...Again - 2005 Mercedes-Benz CL65 AMG Long-Term Road Test
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2005 Mercedes-Benz CL65 AMG Long-Term Road Test

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2005 Mercedes-Benz CL65 AMG: Adding Oil...Again

April 14, 2014

2005 Mercedes-Benz CL65 AMG

Our twin-turbo V12-powered long-term 2005 Mercedes-Benz CL65 AMG is using oil. About a quart every 1,000 miles.

We bought the car back in December with 56,000 miles on it. It was a CPO car and had just been serviced by Mercedes-Benz of Reno, NV. However, we've already added oil to the big V12 four times: a quart at 58,500 miles, 59,000 miles, 61,000 miles and now at 62,000 miles. Per the car's spec we used Mobil 1 0W40 full synthetic European Car Formula, which ain't cheap.

2005 Mercedes-Benz CL65 AMG

There doesn't seem to be any leaks under the car and we have no way to manually check the oil level. Remember, this Mercedes does not have a dipstick. Instead it relies on a digital computer-generated oil level gauge and low level warning system. It is possible that measuring system is on the fritz and we are overfilling the engine, which would not be good, but I don't believe that to be the case.

Meanwhile, that same computer tells us a scheduled service should be performed in 4,500 miles. We'll keep you posted.

Scott Oldham, Editor in Chief @ 61,185 miles

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