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Re: 5W20 VS. 5W30 engine oil
Posted to Technical Discussion Forum on 8/23/2013

"Many products that fail ACEA ratings also have claims printed on the bottle that "appear" to claim ACEA compliance."

Many oil bottles say A5 or B1, etc. but do not give the year of certification such as A5/B5-07 so there is a lot of variance if the year is ... Login to read more.