Mineral , semi synthetic or fully synthetic?

**miko101130** · May 14th, 2012 01:00 PM

Mobil products guide with reference to Zinc, Phosphorus content and ratings...

http://www.mobiloil.com/USA-English/...duct_Guide.pdf

**Retz** · May 14th, 2012 02:02 PM

Originally Posted by miko101130

most vehicles with EGR are comfortable with CI-4 oils... masyado na kasi luma CF-4... usually mga old school diesel engines ang gumagamit pa CF-4... mura kasi price ng CF-4.... hindi pa magawang obsolete ang CF-4 kasi madameng old engines ang gumagamit pa nito...

In third world countries, more than 50% of oil consumption is still on CF-4 categories... imagine the amount of oil used by mining, agricultural, heavy construction equipment, and other off-highway machines...

Sir, kapag mga modern CRDi engine at least CH-4 ba ang recommended? or CI-4 na?

**Retz** · May 14th, 2012 03:49 PM

Among the API CH-4 rated diesel engine oils, how do you rank Delo Gold, Rimula R3 X and Castrol GTX? and speaking of Castrol, hindi ba talaga magandang brand ito may nababasa kasi akong comment na prone sa sludge formation ito.

**miko101130** · May 14th, 2012 04:03 PM

Originally Posted by Retz

Sir, kapag mga modern CRDi engine at least CH-4 ba ang recommended? or CI-4 na?

definitely at least CI-4... suitable to EGR systems and lots of TBN to fight the acidity produced by sulfur in fuel and also provide better emissions...

pero pag super modern diesel engines like those with higher emissions na kung anu anu... SCR/DPF/ etc, CJ-4 is best suited...

**Ry_Tower** · May 14th, 2012 05:41 PM

Originally Posted by Retz

Among the API CH-4 rated diesel engine oils, how do you rank Delo Gold, Rimula R3 X and Castrol GTX? and speaking of Castrol, hindi ba talaga magandang brand ito may nababasa kasi akong comment na prone sa sludge formation ito.

I'd rank Shell R3X higher, then Delo Gold. Better Ash, Zinc, Pho and TBN kasi Shell R3X & mas mura ng Shell R3X actually eh vs Delo Gold kung sa gas station ka bibili. Castrol GTX last for me.

**Retz** · May 14th, 2012 09:41 PM

Originally Posted by Ry_Tower

I'd rank Shell R3X higher, then Delo Gold. Better Ash, Zinc, Pho and TBN kasi Shell R3X & mas mura ng Shell R3X actually eh vs Delo Gold kung sa gas station ka bibili. Castrol GTX last for me.

Okay, thanks sir ry_tower. noted.

**Retz** · May 14th, 2012 09:50 PM

"and are intended for use with diesel fuels ranging in sulfur content up to 0.5% weight."

I often see the above phrase in API rating. Is 0.5% weight equivalent to 500ppm?

**s10pao** · May 14th, 2012 09:57 PM

Originally Posted by miko101130

If FS gagamitin, siyempre mas maganda protection at performance nyan, plus pwede for extended oil changes... dahil sa custom made ang base oil nang FS which is 90% of the total oil volume. Resistant ang FS sa oil oxidation at mas matagal talaga ma degrade ang mga additive package as compared to group III and below base oil...

when i say FS, i mean the Group IV base oils, the PAO.... kaso ang mahal kasi nang mga FS na PAO based... nasa 600 pesos pataas per liter.... parang overkill kase... unless you torture your engine in cases liked drag racing, circuit lapping, extreme towing or off-roading...

sir how about idemitsu? kasama ba sya sa Group IV base oils? TIA.