2007 Honda Fit - Amsoil SS AZO 0w30 - 12,500 miles

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Here is my first run on Amsoil Signature Series for this vehicle.

9 months. 70% highway miles.

Added 1 Quart oil consumption per 4k miles; same as before for this engine. Perhaps a slightly higher end TBN as a result. 3 Qts total top off. (Acceptable amount for me on this oil)

The car idled for about 10 minutes to drive it onto ramps for the oil change. Oil was slightly warm draining (possibly contributing to fuel dilution flag)

Oil Filter: Fram Titanium FS7317 + FilterMag pair.

Air Filter: Purolator A25657 PurolatorONE

I’m thinking of maybe going 15k next time. :)

IMG_4860.webp


Previous reports on engine:


 
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335,000 miles on your Fit... WOW!
I think you can go 15k. Everything looks good & adding 1 qt at 4k intervals on, presumably, a small sump is working to your advantage of extending the interval. Very low contaminates except fuel. I would imagine the GC fuel reading is fairly accurate & does represent the condition of the oil over this 12.5k interval. IMO keep it under 5% but looks like that should work out even w/15k interval. Nice run!!
 
335,000 miles on your Fit... WOW!
I think you can go 15k. Everything looks good & adding 1 qt at 4k intervals on, presumably, a small sump is working to your advantage of extending the interval. Very low contaminates except fuel. I would imagine the GC fuel reading is fairly accurate & does represent the condition of the oil over this 12.5k interval. IMO keep it under 5% but looks like that should work out even w/15k interval. Nice run!!
Really small sump compared to more modern engines, only 4 qts.

Supplementing 25% of the sump every 4000 miles, I'd venture this OCI could go quite a while pending dilution condemnation.

Definitely want to make sure it's good an hot next time just to be sure about the fuel that it's not a problem since past reports were good. However, past reports are Blackstone :/


Great work keeping this thing chugging well over 300K!
 
I’m not familiar with accurate fuel dilution analysis lol. I did use a PEA cleaner followed by B12 on the two tanks prior to the change.
 
I’m not familiar with accurate fuel dilution analysis lol. I did use a PEA cleaner followed by B12 on the two tanks prior to the change.
Those cleaners don't burn as well as gasoline. They tend to migrate to the sump. I'd reduce the use of those products as most gasolines have good to excellent additive packages. Also, drive the car at highway+ speeds for t least 30miles on a weekly basis. This burns off the condensation and fuel in the oil.
 
Those cleaners don't burn as well as gasoline. They tend to migrate to the sump. I'd reduce the use of those products as most gasolines have good to excellent additive packages. Also, drive the car at highway+ speeds for t least 30miles on a weekly basis. This burns off the condensation and fuel in the oil.

I drive 20 miles on the interstate each way for my commute and 75% of the overall commute is that. Five times a week, so that is 200 miles a week.

I’ve been using PEA cleaners; before oil changes only, for years on this vehicle. Sometimes, I will run a can of B12 the tank immediately following.
 
Oh, one other note; this was also the first use of SAE 30 grade in this engine.

No noticeable difference in fuel economy (as expected)
 
335,000 miles on your Fit... WOW!
I think you can go 15k. Everything looks good & adding 1 qt at 4k intervals on, presumably, a small sump is working to your advantage of extending the interval. Very low contaminates except fuel. I would imagine the GC fuel reading is fairly accurate & does represent the condition of the oil over this 12.5k interval. IMO keep it under 5% but looks like that should work out even w/15k interval. Nice run!!
Yes, the sump total capacity is 3.8 Qts.

Is roughly 3% GC for fuel that troubling? Perhaps an injector is finally showing its age? Just thought that idling on a cold start could give a false positive.
 
Yes, the sump total capacity is 3.8 Qts.

Is roughly 3% GC for fuel that troubling? Perhaps an injector is finally showing its age? Just thought that idling on a cold start could give a false positive.
I would not be worried about 3% fuel dilution. Above 5% I would start to be more concerned but even then I think the issue of fuel dilution in the 2.5%-5% range gets overblown here on this site.
 
Yes, the sump total capacity is 3.8 Qts.

Is roughly 3% GC for fuel that troubling? Perhaps an injector is finally showing its age? Just thought that idling on a cold start could give a false positive.
Not really sure about that engine but I think your report shows the fuel as something to monitor. I do not know if you would show lower wear with lower fuel but your results look really good overall so really I'd not be upset about it. If the injectors are original perhaps an injector cleaner could be a plan if you want to rule it out. I've seen places advertise injector service were they hooked up to your system that runs a cleaner through but that's entirely were you're at with this car.
 
Here is my first run on Amsoil Signature Series for this vehicle.


I’m thinking of maybe going 15k next time. :)

I’ve been following your Fit for a while. You’ve done over 15k intervals before. Why the drop to 12k? 🤨
 
I’ve been following your Fit for a while. You’ve done over 15k intervals before. Why the drop to 12k? 🤨
Not the same Fit.

Going over 15k was on my BIL’s Fit running Mobil1 AFE about a decade ago. (Back when AFE had a healthy dose of PAO in the base stock, iirc?)

He ran his out to 18k and 21k separately.

My personal Fit has gone 12.5k twice on M1 EP and once went 14.5k using M1 AFE prior to those runs of EP; again when AFE had arguably more expensive base stock (who knows if “better”)

Since learning about the clean running ability of oils that aren’t formulated for extended intervals; given all of HPL’s extensive interactions on the boards, I made the choice to scale back extended drains on “off the shelf” oils such as M1 AFE or when I’ve ran Valvoline MaxLife.

The repeatability being in question, it’s my opinion that regularly extending intervals with an oil not formulated or marketed for extended use is a risk greater than I had realized.

Granted, these Fits with the L151A engines may be the exception due to just how easy they seem to be on the oil.

However, without a borescope into the combustion chamber, it’s a risk that deposits haven’t been forming and both of our Fit’s now consume oil; especially my BIL’s for a time after having the extended intervals on M1 AFE…it has since seemed to calm down going back over to M1 EP and M1 EP HM.

Could it be from extending intervals on oils like M1 AFE that deposits around the oil control rings became an issue?

It may simply be from usual wear on a Honda I4. I do wonder though…and I don’t mind using Amsoil or HPL moving forward for peace of mind on extending intervals once again on my own Fit.
 
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