How long at maximum can Mobil 1 synthetic oil be used?

Question

I used mine for 15,000 kms without changing (out of neglect). Will that damage my engine?

Answer 1

i doubt it. A friend only changed the oil every 25K miles. The trick to it is to change the oil filter every 3K miles and add a fresh quart of oil. That keeps the additives fresh in the oil and it will protect the engine. He had a S-10 Chevy truck with over 220K miles and it still sounded like a new engine, you could barely hear it run. good luck

Answer 2

We all know the rule of 3's for oil changes: "3 months or 3000 miles, whichever comes first." But the truth is that modern synthetics don't break down enough to need changing until 5000 miles. I recommend 3000 miles for the break-in period of the car and 5000 miles after that until 100k miles, then back to 3000 miles between oil changes. The reasoning behind the 3000 mile changes for the break-in period and the 100k mile-mark is simple. During break-in, your engine is 'seating' the pistons and rings to the block; as a result, some small metal particles break off. This is normal, don't panic, but the oil collects these particles and will have enough at 3000 miles to put wear on your engine. I change my oil after the break-in period is completed if it is less than 3000 miles for the same reason. After 100k miles, I like to baby my engines with new oil changes every 3000 miles with synthetic because, in my experience, this helps them last longer before you need to rework any major parts (pistons, rings, crank, etc.) Hope this helps.

Answer 3

It isn't the oil you should worry about so much, but rather the filter...if a filter gets filled up with junk, it tends to starve the engine for lubrication...

I'm a dinosaur anyway, so I believe in changing oil and filter every three or four thousand always, regardless of whether it is synthetic or not...

Answer 4

The issue is not the synthectic oil, but actually the filter. The oil captures the sediments and fine particals and other impurities. The filter does just as the name implies. The oil will not break down or fail to do its job. The filter on the other hand may clog .. you get the drift. Check the rating on your filter.

Answer 5

But how do you drive your car depends more.