Hello all, I have a '99, 120k Toyota Avensis with the non vvti engine. I was wondering if using 10w40 oil in it would be OK? I think mostly 5w30 is used, but a have a load of 10w40 left in my garage from when halfords had it on sale! Any advice welcome.
shouldn't be a problem - that oil is effectively 'one grade up' cold and hot, so I can't see any issues.
As long as the oil is still for petrol, it'll be fine - if you were swapping from 5w30 (which is like water) to 10w60 (which is like concrete) I would advise against it.
