Recently had a service at a local chain of garages.
Upon questioning the details on the invoice which showed the wrong type of oil, I was told that they had actually used Castrol Edge 5W40 oil. After a bit of internet research I have found out that this oil does not meet the required Ford specification and is classified as ACEA B4 which also does not meet the requirements as detailed in the owners manual.
Ford require either Ford oil, or that which meets the Ford specification or ACEA A1/B1 or A3/B3.
The garage say that they have serviced many makes and model of cars with this and have never had any problems and the EDGE oil is much better than say the 5W30 Magnatec that does meet the Ford spec and is recommended by Castrol when you put the vehicle details into their website.
Should I worry about having EDGE 5W40 in my car? Will it cause damage? Will it affect fuel ecomony (thicker at running temp = engine working harder)? Should I request that they put in oil which meets the specification or am I getting too fussy?
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