I've been keeping my eye open for any conventional 10w30 HDEO's in Canada, and so far the only one I've managed to find here in New Brunswick is the Motomaster 10w30. It's ratings are out of date, carrying CH-4/SJ on the label. Would that be sufficient for mid-90's cars, at the latest? See, my family aside from my brother aren't too keen on oil changes, so I usually end up doing them at my own expense. I don't mind really, to tell you the truth I just can't stand to see a vehicle that isn't maintained. I'd like to use a diesel engine oil year round in their cars, but a 15w40 would be too 'heavy' in the cold winter months. A 10w30 diesel engine oil would suit this situation fine, if I could find a good one. As I said earlier, I've only managed to find one so far. Any other 10w30 HDEO's I should be aware of?