can I add 5W-30 synthetic motor oil to 5W-30 regular motor oil already in the car

can I add 5W-30 synthetic motor oil to 5W-30 regular motor oil already in the car 1 answer

Can one mix 5w-30 genuine toyota engine oil with shell 5w-30 engine oil. 2 answers

I have 4 quarts of 5W-30 genuine Toyota engine oil but my but my truck takes 8quarts. I cannot get the genuine Toyota engine oil but 5W-30 fully synthetic engine oil from shell. Can I mixed the two ...

Will 10w-30 motor oil instead of 5w-20 damage my V6 2008 Honda Accord? 2 answers

I added a quart of 10w-30 motor oil instead of the recommended 5w-20 to my V6 2008 Honda Accord. Will this damage my engine? The car has approximately 5,400 miles on it and 50% oil life remaining. ...

Should I 5w-20 or 5w-30 synthetic oil in my sequoia 2008 4WD where temp. are 100 - 104 degrees F? 3 answers

I have a sequoia 2008. The manual suggests 5w-20 but I am advised to use 5w-30 due to thehigh tem in the rea I am using the truck. Truck has 97,800 miles on it. I checked at most of the lub statio...

How often do i need to have 5W-30 oil changed? 30 answers

I just bought a Mazda3 hatchback, and I am wondering how often I need to change the 5W-30 oil. I had a Mini Cooper before, and I had to change the oil every 15,000 miles. Is it the same for my Mazda3?