The Answer is NO!!! Not if you want your car to last much past the warranty period. Today’s cars have much better engines and fuel injection systems. The recommended oil is a high quality synthetic oil. That will get you safely to about 7500 miles on an oil change, but not to 15-20k. What has happened is that there is a lot of competition in the auto industry surrounding cost of ownership. It is great to try and make vehicles that will not cost an arm and a leg to maintain, but in our opinion they have gone too far. The vehicles we see that have followed this extended interval have extensive problems with sludge build up in the engine. This leads to some very expensive and unnecessary repairs. Simple regular maintenance will avoid all of this. Todays vehicles can easily go over 300,000 miles with simple regular maintenance!