Motul 300V 5W40, 7251 miles, Honda Civic SiR (JDM)

[ck2718]

Just received my UOA result from WearCheck. The latest result is on the left while the previous UOA result is on the right. Comments provided are for the latest result. The same oil (Motul 300V 5W40) was used for both samples. No make-up oil required. Driving condition: Hot (average of 30 degree Celsius), humit (70% - 90% humidity) climate, mixture of both urban and highway driving (30%:70%). One trackday done on Sepang International Circuit in Malaysia (constant high-revving action for 3 hours).

Oil/Wt: Motul 300V 5W40
Miles on oil: 7,251 / 6,402
Time on oil: 7 months / 6 months
Unit Make : Honda
Unit Model : Civic SiR (JDM)
Engine/Trans: 1.6-litre DOHC VTEC (B16A)/ 5-speed manual
Air & oil filter: K&N, original Honda oil filter
Diagnostician : Doug Bogart
Time on oil: 7,251 miles / 6,402 miles

CONTAMINATION
There is a trace of moisture present in the oil.
Silicon 19 / 16
Potassium 0.3 / 0.0
Sodium 3.0 / 3.4
Fuel (%) Glycol --- / ---
Water (%) 0.123 / 0.117
Soot (%) 0.1 / 0.1
Sulfation 67 / 69
Nitration 14 / 13

OIL CONDITION
Oil Type: 4 LTR of SAE 5W40
The condition of the oil is suitable for further service.
Boron 2.2 / 0.8
Barium 0.0 / 0.6
Calcium 2328 / 2154
Magnesium 587 / 462
Molybdenum 73 / 63
Sodium 3.0 / 3.4
Phosphorus 954 / 907
Sulfur 4181 / 4312
Zinc 1161 / 1028
Visc@40°C --- / ---
Visc@100°C 13 / 12.8
Oxidation 109 / 104
TAN 3.41 / 3.20
TBN --- / ---

WEAR
All component wear rates are normal.
Iron 7.8 / 9.5
Nickel 0.2 / 0.2
Chromium 1.1 / 1.4
Titanium 0.1 / 0.1
Copper 7.1 / 8.9
Aluminum 8.3 / 7.8
Tin 0.0 / 0.0
Lead 4.3 / 6.9
Silver 0.0 / 0.0

 

[ck2718]

Do let me have your comments. Most of the wear metals have been reduced except for Al. Should I be concerned with the increase in Al, as well as Si?

 

[jaj]

Results look "good" for 7,251 / 6,402 kilometers, and "stellar" for 7,251 / 6,402 miles.

 

[ck2718]

Sorry for the confusion. It is for 7,251 / 6,402 miles (11,670 / 10,303 km)

Thanks! Now on the double-ester formulation 300V 5W-40. Will be pushing it to 15,000 km (9,321 miles).

 

[ck2718]

Forgot to add that the engine has 106,939 miles (172102 kilometers) when the latest sample was taken.

Appreciate any inputs.

 

[buster]

ck looks fine but nothing a less expensive, lower viscosity oil can't do. API SM that is.

 

[ck2718]

If I'm just using the car for the daily commutes, I'd have no problem with using a lower viscosity oil. But the thing is I do take it to the track, where the engine will see continuous high-revving (to its 8200rpm redline) for the good part of 3 hours. One of my tracking pals used the 300V 5W-30 on his Honda EG Civic hatchback (with the same B16A engine but with a much higher compression ratio and more aggressive camshafts) and a noticeable quantity was consumed.

Another point, I can get the 300V at around USD 63 for 4 litres, which is rather competitive with other full synthetic motor oils like Mobil 1 0W-40 SuperSyn and Shell Helix 5W-40 (USD 63 and USD 53 respectively, for 4 litres each). Yes, I know it's a lot to pay for motor oil but that's how they're priced over here.

 

[ck2718]

Anyone else with other comments? All feedback will be greatly aprpeciated.

 

[[RT] ProjUltraZ]

wow Sepang is a huge circuit. lap times must be like 3 or 4 min?

 

[ck2718]

It's a 5.5-km circuit. In my Honda, I take under 3 minutes for a lap. A Porsche 911 GT3 Cup car, with a decent driver at the wheel, would take about 2:15 for a lap.

 

[Al]

I'm too lazy to look up other UOA's for silicon values for Motul. It may be that silicon is higher in the Virgin oil analysis. I have been considering the Motul Oil. I think since you track it hard every now and then the Motul is good insurance. I'm impressed.

 

[JAG]

Check out that high TAN. It's scary enough at this OCI. No way would I extend it significantly. So far it doesn't appear the acids are eating the bearings but I expect it won't take much more TAN for that to show up.

I wouldn't use this oil for this application. I'd use something a little more street use / long OCI friendly and less race oriented.

 

[ck2718]

Quote:

---

Check out that high TAN. It's scary enough at this OCI. No way would I extend it significantly. So far it doesn't appear the acids are eating the bearings but I expect it won't take much more TAN for that to show up.

I wouldn't use this oil for this application. I'd use something a little more street use / long OCI friendly and less race oriented.

---

JAG, appreciate your input. However, if you take into consideration the virgin TBN of 11.5 (i.e. a cut-off of TAN 5.75), the TAN of 3.41 is actually not that bad. My current fill is the double-ester 300V 5W-40 with a virgin TBN of 10.9. You wouldn't advise running it for 15,000km (around 9,300 miles)?

What would you recommend for my appplication?

 

[JAG]

TAN of 1/2 the initial TBN is one way to come up with a TAN condemnation limit. A TAN of 5.75 is really high...I've never seen a UOA with a TAN that high. Another condemnation limit approach is when TAN=TBN. Using that, if your TBN was
What other oils to use? I have no idea specifically. Let's just see how the next fill of 300V does first. Getting TBN and TAN would help enormously for finding out if the oil was used too long.