Hi guys, I've been browsing this forum for a while and noticed that 10W-40 wasn't a very popular oil here. I also see some negative talk about it from time to time (some say semi-synthetic cause worse leaks than synthetic etc). It looks like it's still one of the most popular viscosities in europe and a best seller for sure.
While a 5L jug synthetic 5W-40 is around 30€, 10W-40 is only around 20€ or 13/15€ when on sale for brands like Total, Elf or Shell. It is really cheap to get and carries ratings that get better with years and almost similar to the synthetics now (API SN, ACEA A3/B4, MB 229.3...). At this point i almost dont see any reason to use synthetics if the interval is kept relatively short with a mild climate for NA engines.
Why is 10W-40 so popular here ? (besides 5W-40 and 5W-30 mid saps). Is it popular in other parts of the world as well ? Did you guys noticed drawbacks vs synthetics for the aforementioned use ?
While a 5L jug synthetic 5W-40 is around 30€, 10W-40 is only around 20€ or 13/15€ when on sale for brands like Total, Elf or Shell. It is really cheap to get and carries ratings that get better with years and almost similar to the synthetics now (API SN, ACEA A3/B4, MB 229.3...). At this point i almost dont see any reason to use synthetics if the interval is kept relatively short with a mild climate for NA engines.
Why is 10W-40 so popular here ? (besides 5W-40 and 5W-30 mid saps). Is it popular in other parts of the world as well ? Did you guys noticed drawbacks vs synthetics for the aforementioned use ?