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Using 10W-40 Oil in high mileage Mk2 1.6 Petrol engine?

AntonovAN12
AntonovAN12
in Ford Focus Club

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I read somewhere about using 10W-40 oil in this engine at higher mileages as it is thicker than 5W-30. 

With 5W-30, I used to have to top up every few months with no obvious leaks. That suggests it must have been burning a small amount. 

Since the rear crankshaft seal started leaking, I have been topping up with 10W-40 as I had some spare. The owners manual says that 10W-40 can be used for top ups. 

my car has now covered over 150,000 miles. Would it be recommended to run with just 10W-40 once the seal has been replaced?

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    3 hours ago, AntonovAN12 said:

    Would it be recommended to run with just 10W-40

    ....and a handful of sawdust 🤣

    https://tv.getyarn.io/yarn-clip/b86db488-3d92-4d56-9334-4f83267c1f1b

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