Originally Posted by jasonr575
.......I would like some realistic opinions. Is it really needed ?
Not sure what a realistic opinion would be in this case. The petro industry tells us that the corrosion preventatives in their oils will degrade over a published time. Therefore, we change it out in the time.
If you failed to do this on one single season, it would then do damage. Would you notice the damage? Couldn't say. But, if you did, wouldn't you serious regret not swapping out a few quarts of oil.