Hi guys!
I'm new here and have been lurking for just a bit also. And I can say is that I really learned a lot here in this community. This will be my first post here in this great forum and I really looking forward on your great advise and expertise.
I'm currently working here in Saudi Arabia in an oil company with a chain of quick lubes. Recently one of our branches received a 2015 Chevrolet Tahoe. The technician replaced the oil and filter and used 5W-20 synthetic oil.
After a couple of days, the customer came back and was asking for a refund, saying that he brought his Tahoe to the dealership due to a "ticking" sound after having the oil changed from our station. The dealership did not find anything wrong with his vehicle. He then mentioned that he just had it serviced. The "engineer" from the dealership asked for his invoice and saw that the oil used was 5W-20. The engineer told him that only 0W-20 oil is required for his vehicle and that using any other oil grade will damage the Tahoe's engine and may void his warranty.
Is this true? From what I had learned here is that, specially based on the climate that we have here in Saudi Arabia, the "20" would be the one "working"(what's the right term anyway?). And the difference between 5W and 0W would be small and most of the time, even during winter, the coldest we get can here (eastern part of Saudi Arabia) is 50F - would be of little use. I think it is correct to say that the 0W-20 recommendation for the vehicle is "mostly" for fuel economy due to regulations in USA, which of course we don't have here in Saudi Arabia. And based from a product data sheet file which I got from the internet from another oil company where they have a comparison of their products in different viscosity (0W-20 & 5W-20 included), the KV40 and KV100 differences between 0W-20 and 5W-20 is quite small (although I'm not entirely sure).
We contacted our engineers at the plant to shed light on the situation but they did not give a straight answer. In fact, they answered in a copy-paste manner about an article or note from API which I didn't quite understood(maybe due to lack of sleep or I'm a total newb). If needed I could paste it here also.
Looking forward on you great advise.
Thanks
I'm new here and have been lurking for just a bit also. And I can say is that I really learned a lot here in this community. This will be my first post here in this great forum and I really looking forward on your great advise and expertise.
I'm currently working here in Saudi Arabia in an oil company with a chain of quick lubes. Recently one of our branches received a 2015 Chevrolet Tahoe. The technician replaced the oil and filter and used 5W-20 synthetic oil.
After a couple of days, the customer came back and was asking for a refund, saying that he brought his Tahoe to the dealership due to a "ticking" sound after having the oil changed from our station. The dealership did not find anything wrong with his vehicle. He then mentioned that he just had it serviced. The "engineer" from the dealership asked for his invoice and saw that the oil used was 5W-20. The engineer told him that only 0W-20 oil is required for his vehicle and that using any other oil grade will damage the Tahoe's engine and may void his warranty.
Is this true? From what I had learned here is that, specially based on the climate that we have here in Saudi Arabia, the "20" would be the one "working"(what's the right term anyway?). And the difference between 5W and 0W would be small and most of the time, even during winter, the coldest we get can here (eastern part of Saudi Arabia) is 50F - would be of little use. I think it is correct to say that the 0W-20 recommendation for the vehicle is "mostly" for fuel economy due to regulations in USA, which of course we don't have here in Saudi Arabia. And based from a product data sheet file which I got from the internet from another oil company where they have a comparison of their products in different viscosity (0W-20 & 5W-20 included), the KV40 and KV100 differences between 0W-20 and 5W-20 is quite small (although I'm not entirely sure).
We contacted our engineers at the plant to shed light on the situation but they did not give a straight answer. In fact, they answered in a copy-paste manner about an article or note from API which I didn't quite understood(maybe due to lack of sleep or I'm a total newb). If needed I could paste it here also.
Looking forward on you great advise.
Thanks