4th EcoBoost Blackstone Oil Report, 7k Miles--Mobil 1
12-01-2012, 04:57 PM
#11
Senior Member/Vietnam Vet
He actually had less fuel dilution at 7K than he did in one of the 5K checks, so I'm not sure that is a problem. I would like to see a 10K analysis as that seems to be what the oil life meter seems to be going for.
12-02-2012, 10:11 AM
#12
Senior Member
I'm not saying he has any problems, I would have considered his report a good one. I just would not extend the oil change interval. He is getting fuel dilution but it is not real bad and his oil is handling it fine. In both cases (5k and 7k) his oil was just under grade but the wear metals looked good. That says to me; for how he drives, using his oil of choice, and using a OCI of 5 or 7k that he is good. Why extend farther? You are right that it may also be fine at 10k miles with mobil 1 but I lean to the cautious side.
12-04-2012, 05:07 AM
#13
Heat Miser
Diesel nerd, not a gasser nerd here, but my ubderstanding of di engines is that fuel level is only potentially a problem if is increasing over the same oci or it surpasses the oils additive package and dilutes it leading to low tbn and therefore higher wear. even blackstone comments that hasnt happend and that tbn is good and so is the oil. i see more of a reason to look for a stouter oil here if the goal is longer oci than a fuel issue.
Secoond, a uoa is not monitoring the engine but only the quality of the oil. you may catch an engine problem but you shouldnt think of a uoa as such. and documenting oil condition is also not documenting engine condition.
Secoond, a uoa is not monitoring the engine but only the quality of the oil. you may catch an engine problem but you shouldnt think of a uoa as such. and documenting oil condition is also not documenting engine condition.
As far as your contention that an oil analysis doesn't monitor the condition of your motor, that couldn't be any further from the truth. By telling you WHAT kind(s) of metals are in your oil, it's telling you WHICH parts are wearing. By telling you HOW MUCH of a particular metal is in your oil, it's telling you how QUICKLY these parts are wearing, and also if there's an imminent problem.
Here's a link to the company that the OP used:
http://www.blackstone-labs.com/
If you open it, you'll notice the very first thing that is written on their home page is this:
Oil analysis is a quick, nondestructive way to gauge the health of an engine by looking at what's in the oil.
FWIW, it works the same way with diesels and gas motors.
Last edited by yokev; 12-04-2012 at 03:16 PM.