Originally Posted By: The Critic
Originally Posted By: tropic
I don't see 0w-20 performing any differently than 5w-20 in your car during the summer months. Honest opinion. You won't see any changes in fuel economy or protection at all.
In fact I'm running Synpower 0w-20 in my Honda for the summer. I admit it's mostly for the novelty of using a non-Mobil 0w-20. I have a jug of Ultra 5w-20 that was supposed to go into the car, but the Synpower looked too tempting on the shelf at Wal-Mart.
If there's no difference, then why is Honda slowly moving their line-up from 5w-20 to 0w-20, starting with the 2010 CRV?
There IS a difference in fuel economy between 5w-20 and 0w-20, but the difference is minimal. However, when millions of cars on the road make the switch, it can potentially result in a notable reduction in gasoline consumption.
My point is that there is no significant performance difference between a 0w-20 and a 5w-20 in the summer heat. If you want to see the 0w-20 shine, try the comparison while short tripping in winter.