Quote:
Originally Posted by skyship007
Shell Helix Ultra 5/40 (A3/B4) is often cheap for a real good oil, although if you have any leaks Valvoline Maxlife 10/40 seems to be the cheapest high mileage oil with seal conditioners, along with Castrol GTX 15/40 (Summer only).
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Thank you for the suggestions, but is 5w40 not going to cause damage to the engine, as the manufacturer indication is to use 0w30? or it doesn't even matter, as long as it meets the A/B spec?
(my car doesn't have a DPF, so I've been careful not to buy the C spec)