Castrol GTX 5W30, 5,000mi, 2003 Toyota Tacoma 2.4L

[HJC]

I'm using Mobil Clean 5000 from now on since it's a bit cheaper.

 

[chevrofreak]

If the GTX is producing the exceptional results like that, why switch? Are you going to do a UOA on the Mobil Clean 5000?

 

[Carzzz]

GTX proves its ability!

Edit: what's the driving habit?

 

[HJC]

I went to Mobil 5000 because I wasn't sure how GTX would be in my truck after 5000 miles. I like to stick to 5000mile intervals since it's easier to remember. Looks like it could handle it.

The 5000 miles here included a 1200 mile road trip. Most of the way I was just cruising at traffic speeds in Southern California warm weather. The other 3800 miles is a good mix of city/hwy.

 

[jorton]

My telephone line is too slow for Photobucket image.

What were the results for moly, boron, sodium, viscosity, fp and tbn?

Thanks!

 

[Jaymus]

Are you going to get a UOA on the Mobil 5000? I agree, after seeing these results, I'd stick with GTX for conventional.

 

[HJC]

For those who don't want to see the whole image

MI/HR on Oil 5,000
MI/HR on Unit 95,000
Sample Date 07/19/09
Make Up Oil Added 0qts

ALUMINUM 2
CHROMIUM 0
IRON 4
COPPER 4
LEAD 1
TIN 1
MOLYBDENUM 33
NICKEL 0
MANGANESE 0
SILVER 0
TITANIUM 0
POTASSIUM 3
BORON 24
SILICON 11
SODIUM 111
CALCIUM 2093
MAGNESIUM 8
PHOSPHORUS 658
ZINC 892
BARIUM 0

Measured/Should Be
cSt Viscosity @ 100°C 55.4 56-63
SUS Viscosity @ 210°F 8.90 9.1-11.3
Flashpoint in °F 385 >365
Fuel % Antifreeze % 0 0
Water % 0 Insolubles % 0.3 TBN 2.8
TAN -
ISO Code -

 

[jorton]

This Taco is easy on oil. Add pack levels look like virgin. If you drive 1000 miles a month you need only change oil two times a year. Nice.

 

[ZZman]

That is a nice run and showing for GTX.

 

[JohnBrowning]

Look at how low that TBN is? This is not going to be an oil I would want to try an extended OCI that is for sure! The wear metals all look ok except for tin! I am not used to seeing this much tin in a short OCI on a Toyota unless they silicone is high and your silicone levels where not that bad. Check your air box and make sure it is all fited tightly and all your house's and such for leaks!

 

[Drew99GT]

TBN of 2.8 is fine. That much tin? There's 1 ppm!

 

[Jaymus]

Yeah, with a TBN like that, this oil is a 7k-8k mile oil for this vehicle. Maybe longer?

 

[HJC]

Thanks for all the input. Should I worry about that tin?

Looks like I'll stick with GTX. I'll skip the UOA on the Mobil 5000. No sense spending $30 to save $1.50 every oil change. (Mobil5000 is $11 vs GTX $12.50 at my closest WalMart)

 

[ARCOgraphite]

Stay with the same oil brand thats works - better for the motor in the long run. You need not to do an UOA - waste of money on a std pass car.

 

[jorton]

How many miles more do you think it would take TBN to drop 1 full # to 1.8? 1000 miles, 2000 miles?