I depends on the age of vehicle. I would only push 3-5K past the oil change interval of 5K.

Always watch the oil level, new vehicles do consume oil in cumbustion process so oil levels will reduce naturally. I am using Valvoline Maxlife Synthetic how often. Best synthetic motor oil to use? How many miles before my next oil change after.
Based on Sequence IIIH. Most of her travel is highway miles. Question about oil change intervals. Given that this is a synthetic I’m guessing I can go at least 0miles before my next oil change.
The truck is my daily driver and I drive about 20miles per year. Mobil Extended Performance synthetic oil is recommended for oil change intervals up to 10miles or one year, whichever occurs first. That’s roughly FIVE TIMES longer than conventional oil change wisdom recommends. Imagine the savings from both the actual oil and the change procedure costs. No other synthetic keeps your engine cleaner.
Although synthetic oils are generally more expensive, they usually provide a longer oil change interval than conventional oils.


