Honestly I neither see a reason for 10w-40 or 20w-50 in modern vehicles unless it has mechanical problems. I'm shocked how much of both of these we sell at the parts store!The OP is located in France. I'll add my two cents. 10w-40 is widely available in US. Walmart and auto parts retailers readily have it available. Almost any grade you want, you can find easily.
In Canada our choices are less abundant. 10w-40 is not easily available at Walmart Canada and Canadian Tire. Same with 20w-50.
If you are comfortable running 10w-40 that's all that matters for you. Based on what I read here, people that use 10w-40 in Bitog try it when they have a motor that leaks or burns a lot of oil and they want to slow down that oil consumption.
Honestly I neither see a reason for 10w-40 or 20w-50 in modern vehicles unless it has mechanical problems. I'm shocked how much of both of these we sell at the parts store!
Try an oil wich has MoDTC in it....there is one study here on bitog wich supports that teory...but since we have new forum I have lost all my teacked topics....Did anyone have success quieting down a noisy timing chain with heavier oil ? The M111 engine sounds like a metal bucket full of marbles (they all do).
It's the same price as pretty much every other name brand synthetic on the shelf, if you want bargain basement at a rip off price look at Ravenol TSi 10W40, I don't know why they'd even bother to import that to the US.the few a3/b3 (i.e mobil 1 hm) 10w40s sold in america are bargain basement oils at premium prices
I like it because it has a higher HTHS and KV100 than most of the 0w/5w40s, though I'll probably just stick to 15w40s in the warmer months from now on. No reason to use a 0/5W winter rating if it's hot as balls outside. Delo semisynthetic 15w40 is $14 a gallon. Hard to beat that.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 ?