Originally Posted by alarmguy
Originally Posted by Eddie
I was interested in a possible new Acura RDX vehicle. My research however; seemed to demonstrate that HONDA turbo DI engines are known to develop considerable fuel dilution, especially in cold cold weather. The few UOAs that I have seen have not shown excessive wear even with fairly high fuel in the oil. BLACKSTONE LABS put the red flag up when fuel dilution exceeds 2.0%. Do other oil testing labs put a flag up at some fuel dilution level? I do hope HONDA has corrected this issue for the need 2.0 DI turbo in the RDX. Ed
There is no issue. DI engines get some fuel in the oil, doesnt matter the make or model, countless comments in these forums about the so called "issue" that does not exist.
More so, in the UOA section as a lot of UOA samples that are collect and sent in are done incorrectly.
The correct method is full operating temperature and middle of the oil drain. So ignore comments about fuel on DI engines,
So, in other words: 1) ignore UOA results entirely, 2) ignore Honda TGDI owners that observe large increases in sump level and 3) ignore Honda's stop sale order in China for this very reason.
Agree that some fuel dilution in DI engines is more or less inevitable and perhaps of no consequence. But Honda seems to have taken this to a new level. If you look at UOAs here for Honda's 1.5T you'll find virtually all have dilution of more than 5% if measured by GC and trashed viscosity. This is not normal...