2002 Q45 engine oil question

[ahmed_wasim]

Hi,I have to add a quat to my car but I dont know what weight and brand is currently in the car. Recommended weight is 20 50 or 10 40.

If I add a quat that is different weight and brand than existing oil, will it cause any problem?

Currently car has regular oil, I have 10 40 sythetic blend at home. Can I addi sythetic blend to regular of same or different weight?Regards,Wasim.

[elwesso]

Just add the same weight, the kind you add isnt really a big deal it will mix fine.

I would bet that its 5w30 in the car right now.

[mcrews]

what wes said is good advise. but if I had just bought a car and it was low a quart, I would go ahead and change the oil and filter. Get a good fresh start.

Mark

[ahmed_wasim]

I am trying to get an appointment for oil change but can't get one till next week. I am going to travel on weekend and dont want to travel with low oil.

Since I dont know what weight and brand is in the car, is topping up with 10w40 syntec blend oil better then running on low oil?
Modified by ahmed_wasim at 12:52 AM 7/5/2007

[maxnix]

Best to match brand as additives may not be nice. Grab the right oil and M1 filter and get it done by someone who will do it right.