jimmy57 wrote: ↑27 Jan 2019, 14:14it will likely not be a good idea to go 10,000 miles between oil changes. People that start car, don't remote start it, and then drive it off easily and then get on a highway and go 40 miles as their rgular drive can do well with 10K interval. Most of the rest of us should adjust it downward. Synthetic oil is way better but falls short of being magic for city drivers in an overcrowded commute.
Agree that these stretched oil change intervals need to be tuned down depending on driving conditions. I'm not sure why car makers still advertise oil change intervals that rather seem to be adequate rather for long highway distance driving ? Most people will use their cars for a regular commute, say 15 miles one way with mixed city-highway driving, which I doubt it's a healthy scenario for a 10.000 miles oil change inteval. Plus, as the car gets older, say past 100.000 miles, wear and perhaps less optimal fuel combustion contaminate the engine oil more, so a further decrease in the oil change interval is a wise approach. At least Volvo clearly requires fully synthetic oil for these intervals.
While there, it is interesting to see that only the 4 cylinder engines seem to have been designed for the thinner W20 engine oils
I'm also surprised about having to wait up to a few minutes to cool down the turbo?
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