Other manufacturers - like Ford - specs xW-30 on their turboed vehicles.The question is why does Kia recommend 30wt oil when all the other manufactures spec 20wts on their turbo engines?
Does Kia not have confidence in their engine designs?
Other manufacturers - like Ford - specs xW-30 on their turboed vehicles.The question is why does Kia recommend 30wt oil when all the other manufactures spec 20wts on their turbo engines?
Does Kia not have confidence in their engine designs?
H/K has a record of recommending thicker oil as a band aid fix.Now all of a sudden the recommendation to use a higher HT/HS oil is somehow a detriment and a negative perception.
Perhaps they are less interested in "adequate under most circumstances" than other manufacturers.
Japanese Turbo's spec 20wtsOther manufacturers - like Ford - specs xW-30 on their turboed vehicles.
I'll certainly agree that no oil is capable of correcting a mechanical defect.H/K has a record of recommending thicker oil as a band aid fix.
Engines that are truly capable of running on thinner viscosoties are probably better designed anyway.
Which may be fine as long as they can keep oil temperatures under control and low enough to keep an adequate HTHS and MOFT between parts. It's all about those two critical factors.Japanese Turbo's spec 20wts
Nissan recomends 0w20 for the 400hp VR30DDTT
Yeah from what I read the oil temps on the Nissan 3.0tt are kept around 160-180F. Which I guess makes sense to prevent the 0w20 from shearing too quickly.Which may be fine as long as they can keep oil temperatures under control and low enough to keep an adequate HTHS and MOFT between parts. It's all about those two critical factors.
There is no one on BITOG who is ominiscent. You ask a question that is impossible for anyone here to answer.My concern is ->> was there any damage by running the lower viscosity oil for 260 miles?
You'd be fine running a 5W-30 in northern Maine in the winter.Living in TN with our semi-mild winters, I think I'd be fine at 5W-30 with an OCI of 4K miles.
Mechanical shear of the VII? That's not the problem.Yeah from what I read the oil temps on the Nissan 3.0tt are kept around 160-180F. Which I guess makes sense to prevent the 0w20 from shearing too quickly.
It's impressive. And I believe there's an updated version too.Does Kia have their own 0W-30? It's not like many other readily available options exist...
Answering own question:
The tolerances are too tight for what?You never want to use thicker than recommended oil in a newer engine. The tolorances are too tight. Use the right oil and enjoy your engine that runs 300K.
The link in post 51 says it’s Total, which makes sense I guess since it’s their “recommended” oilI wonder who makes the Kia oil?
I have posted this before, but I changed the oil in my neighbors 2017 Frontier at 23K.....factory oil and filter..........Took my 2019 Frontier to the dealer for a full synthetic oil change that was the months special.It was the last day to get it and the tech said all they had was 0-20 synthetic oil left when it called for 5-20.I told him sure that was fine so they threw in a free tire rotation.
You could’ve said “which makes Total sense”The link in post 51 says it’s Total, which makes sense I guess since it’s their “recommended” oil
View attachment 104867
Cooler temps to allow for the low viscosity and low oil capacity.Mechanical shear of the VII? That's not the problem.