10662 miles Castrol GTX SYNBLEND 0W-20 Civic Hybri

[Provi]

Castrol GTX Synblend 0W-20

2012 Honda Civic Hybrid 63k miles

10662 miles on sample

NOTE: They say it is EDGE when it is not.

 

[The Critic]

Where did you find this oil? I've never seen the 0w-20 version at WM.

 

[ExMachina]

Anybody else notice that additives seem very light in GTX Synblend (and maybe the Magnatec successor too). Low boron, extremely low-to-nonexistent moly, calcium could be 3,000 ppm, phosphorous could be 50% more and still meet SN max requirements.
Magnatec has been suspected of using esters to meet wear requirements. Wonder what Synblend did in the past?

 

[slacktide_bitog]

Also remember that the older synblend is a blend, while the newer Magnatec is full synthetic in 0w20 (and 5w20, too)

 

[Provi]

Click on the oil above the picture. I got it from Amazon.

 

[BigD1]

What is their recommended TBN limit?

 

[Provi]

Originally Posted By: BigD1
What is their recommended TBN limit?


I would like to know as well. Blackstone in the past said don't go below 1

The Honda OLM stated the oil was 10%

 

[bigt61]

http://www.castrol.com/en_us/united-stat...-motor-oil.html

http://msdspds.castrol.com/bpglis/FusionPDS.nsf/Files/8D1D0BDE9CD081CC80257AA900533A56/$File/GTX_SynBlend_2012.pdf

 

[dorcheat]

Per your comment that the Honda Maintenance Minder was at 10%, it looks like you could have driven about another 500 to perhaps 1000 miles since it reports in steps of 0%, 5%, 10%, and 15%.

With the above said, it looks like you were right and proper to change out the oil with the TBN at 1.4. You got your value from this OC.

 

[Provi]

Would like to add a Fram Ultra was used

When I get a chance I'll post pics in the filter section.

 

[BigD1]

Originally Posted By: Provi
Originally Posted By: BigD1
What is their recommended TBN limit?


I would like to know as well. Blackstone in the past said don't go below 1

The Honda OLM stated the oil was 10%


I was reading about TBN at PQIA, and the article said that a TBN reading of less than three indicates oil needs changing.

"In an effort to strike a balance, the total base number of a new oil is typically in the range of 7 to 10 for gas engines and 10 to 14 for diesel engines. When the TBN in a used oil drops below 3, it typically indicates the need for an oil change." Source: PQIA linked.

http://www.pqiamerica.com/TBN.htm

 

[Provi]

http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2758799

Found it. Interesting read.