I just did my oil change and I put a bottle of 10w40 in with the two bottle of 10w30 I had. I had assumed that they were all 10w30 . I have not started my car yet. and I won't until I recive a responce from the forum. do you think that the 10w40 will harm my engine?
10w40 by itself is not harmfull at all. But the problem is that you mixed two diffrent oils. If they are both sintetic, semi-sintetic or mineral, then it should not do much harm, it's not really great, but not very bad either, but if they are difrent types, then I would not be taking any risk and drain the oil out and pour in new oil.
10W/40 is probably better than 10W/30 at this time of year anyway, as it`s very slightly thicker. It is false economy ever to change oil without fitting a new filter!.
BTW if anyone still thinks that mixing mineral oils & synthetics in any way harmful........that is exactly what a semi-synthetic oil is!.
I changed the filter as well. and according to HMA they say that it is 3.3 liters to fill the engine. does that seem acurate to all of you guys. because it sure is acurate to my dipstick and I guess that is all that matters.
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