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I use 0/30 synthetic in my 89 260e. I have owned it since it was 1 year old and have serviced it myself. Because of the long life of synthetic oil I only have to change the oil and filter every 40,000 miles and find its only using 1 litre every 600 miles. There is little blue smoke so the engine is very healthy. It has done 160,000 and it has only required a new wiring loom and 1 gearbox.

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16y ago

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