I have a 2016 3.5 eco boost with 6100 easy miles on it. Why does Ford not recommend full synthetic as this engine is a twin turbo, and should require the best lubricant possible. Your thoughts are appreciated!
Why is it that you don't trust FMC engineers? they spent millions of $ on engineering something and you want to change it! Trust them! they know what they are doing. FWIW
Because they tested the engines EXTENSIVELY, with the semi-synthetic oil, with far more abuse than any person would ever put on their engine. Go watch the YouTube videos of them torturing these engines.
It's because Synthetic, Semi-Synthetic, Full Synthetic, Partial Synthetic, etc., are all marketing terms. The oil could be marketed as any of the above but Ford knows a certain percentage of their customer base, e.g., old fogies, will be put off having to buy "Fully Synthetic" motor oil.
Originally Posted By: TexasVaquero
Because Ford wants you to buy a car every 3-5 years so they don't want it to last as much as it should.
Yeah, Ford doesn't want its trucks to last more than 200K although many of them do.
Ford really screwed up on my old E350, since it's still running well after twenty three years.
Originally Posted By: TexasVaquero
Because Ford wants you to buy a car every 3-5 years so they don't want it to last as much as it should.
If it only lasts 3-5 years, not many people would be buying another one. This is a straw-man argument.
OP, there is nothing wrong with their recommendation. Many on here have used synthetic blend Castrol Magnatec in their Ford turbos, showing excellent results on their UOAs.
Causes one to wonder, if many commercial HD turbo charged engines that are under far more work related hardship than some little ecoboost engine does just fine for 35,000 - 50,000 mile OCI's on a conventional or a blend and lasts to over 1 million miles, why is it incumbent on Ford to recommend a full syn? I am not convinced that Ford's ecoboost is light years ahead of everyone else in technology. From what I have seen of all the recent turbocharged engines that have been coming out, they would be wise to give the folks over at some of the OEM HD engine makers a call and learn a few things about how this all works. Fuel dilution and other issues that keep cropping up with these little turbocharged engines was worked out a long, long time ago on the HD side of things.