How Do We Pinoys Like Our Diesel?

**youngrider** · December 7th, 2009 09:03 AM

Bakit mas mura ang diesel kesa gasolina.

The diesel (the finished product) for one is easier to produce, but the newer breed of diesel fuels like ULSD or Bio-reformulated petro-ULSD is more complex to process, has more additives to blend, and has to undergo a lot of test standards (daw).

**ajOT** · December 8th, 2009 11:09 PM

Originally Posted by youngrider

Bakit mas mura ang diesel kesa gasolina.

The diesel (the finished product) for one is easier to produce, but the newer breed of diesel fuels like ULSD or Bio-reformulated petro-ULSD is more complex to process, has more additives to blend, and has to undergo a lot of test standards (daw).

what do you mean by ULSD? are these the so called unleaded or premium gasoline
does Diesel also undego set of quality standards before they are refuelled into vehicle like ours for quality purposes, if not, so thats why they say that Diesel are being known as maduming gasolina...

**youngrider** · December 9th, 2009 10:27 AM

ULSD - or S15 is ultra-low-sulfur-diesel w/ sulfur *15 parts per million. Low-sulfur-diesel that we have now is S500 w/ sulfur *500 parts per million.

What are reported negative effects of ULSD?

1. The process of removing the sulfur in ULSD and off-road fuels reduces the ability of those fuels to lubricate fuel system components.

Lubricating agents added during the refining process to meet ASTM standards may not meet engine manufacturers' recommended lubricity ratings.

LSD requires 460 HFRR lubricity performance, this is reduced to 520 HFRR in ULSD which diesel engine makers say is too low.

There were also reported failures in properly adding the necessary additives
before they reach the end-users, it may only require a tankful of sub-standard fuel to destroy engine components.

Additive package is not added during the manufacturing process but at the endpoint distribution terminals to prevent cross-mixing of incompatible additives between diesels and other fuels which use the same pipelines during early stages of distribution.

This why the fleet owners are buying their own additives to ensure reliability of their fuel. Many ordinary diesel users are also bothered by this finding and so are also using their own brand of postmarket additives such as 2-CYCLE oil. Yes, the 2T oil for two-stroke gasoline engines!

The addition of biodiesel increases the lubricity of ULSD, but different sources of biodiesel do not have same of lubricity level, has anyone of us here already read the HFRR score of coconut-methlyl-esther.

2. ULSD results to 1% reduction of the energy content of the diesel fuel.

3. ULSD will increase the diesel fuel price

4. ULSD contains up to a 10-fold increase of water (due to hydro-treating at the refinery) which increases cold weather freezing problem.

Microbe colonies also grow quickly in ULSD due to an increase of free water.

While most of the sulfur has been removed from ULSD, there is still enough to combine with water and form a weak sulfuric acid that will corrode fuel tanks.

5. There is increased paraffin in ULSD, which crystallizes out of the solution in cold temperatures and agglomerates to form clouds of solids that plug filters and injectors when pulled into the fuel line. ULSD can cause diesel fuel gelling problems that stranded trucks in cold climate season.

6. Although the processing required to reduce sulfur to 15 ppm also reduces the aromatics content resulting in an increase to the cetane number, the minimum cetane rating for ULSD is 40, while most engine manufacturers recommend 42-44.

I have a copy of test standards for ULSD as published by CHEVRON but it is in my other computer.

**krazeyrock** · December 12th, 2009 05:19 PM

How about the new diesel from Caltex, the one with Techron additive? Is it safe to use for CRDI engines?

**youngrider** · December 12th, 2009 07:57 PM

Any Euro-2M standard diesel fuel will be good enough provided your car is not fitted with Catalytic converter/DPF.

Euro-2M is S500 with minimum cetane no. of 49. M stands for 'Modified' to suit peculiar conditions of a particular country.

Techron additive has stronger points for engine/injection system cleanliness, deposit control, protection againts corrosion, and antifoaming quality.

**krazeyrock** · December 12th, 2009 10:41 PM

how about shell diesel? I prefer this brand due to the cleanliness of their stations and good service. I hope our crdi won't have a negative effect running on shell diesel.

**ajOT** · December 14th, 2009 12:41 AM

Originally Posted by youngrider

Techron additive has stronger points for engine/injection system cleanliness, deposit control, protection againts corrosion, and antifoaming quality.

so therefore, Caltex with Techron (diesel and gas) is somewhat the best fuel to load up on our car(s) due to reasonsprovided above...?

my question in here is that: why cant the two other big players - Petron and Shell, cant formulate an additive like Caltex to compete with these add-on additives?