Mineral , semi synthetic or fully synthetic?

**Archerfish** · April 4th, 2018 09:17 PM

Originally Posted by mrstealyourgirl

That’s a myth, sir. Synthetics are better in every possible way compared to non-synthetics. Advantage lang ng non-synthetics is usually the price.

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Well, those guys from casa refused to use fully synthetic oil to my 20 year old vehicle. They said that they had a report about it saying the oil couldn't adhere much to the cylinder wall. They said that being an old car, the spaces in between are "much larger" compared when it was new. I really don't know, I just followed their advice. There is no way for me to measure the inside diameter of the cylinder and compare it with the piston diameter

Going back to the inquiry earlier. The oil they are using now is ECT 0W-30. 5W-30 is phased out, according to them.

**mrstealyourgirl** · April 4th, 2018 09:35 PM

Originally Posted by Archerfish

Well, those guys from casa refused to use fully synthetic oil to my 20 year old vehicle. They said that they had a report about it saying the oil couldn't adhere much to the cylinder wall. They said that being an old car, the spaces in between are "much larger" compared when it was new. I really don't know, I just followed their advice. There is no way for me to measure the inside diameter of the cylinder and compare it with the piston diameter

Going back to the inquiry earlier. The oil they are using now is ECT 0W-30. 5W-30 is phased out, according to them.

Regarding the old car, its a matter of using a thicker oil viscosity, not the fact that its synthetic. Old car engines are designed around thick oil weights thats why these newer 0w and 5w oil weights are not recommended.

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**Archerfish** · April 4th, 2018 10:07 PM

Originally Posted by mrstealyourgirl

Regarding the old car, its a matter of using a thicker oil viscosity, not the fact that its synthetic. Old car engines are designed around thick oil weights thats why these newer 0w and 5w oil weights are not recommended.

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Then perhaps there wasn't available synthetic oil with the correct viscosity that will match will the old car when I inquired about it. Saving himself about explaining what the numbers stand for, he simply said that I just use mineral oil. Again, I really don't know.

Thank you for clearing this up.

**JJB** · April 4th, 2018 10:56 PM

Originally Posted by cal0i

Shell Helix Ultra 0W-40 provides:

Unsurpassed sludge protection – no other motor oil can keep your engine closer to factory clean 1
Low viscosity and low friction characteristics for up to 1.9% greater fuel economy
Superior wear and corrosion protection
Easier cold starting
For gasoline, diesel and gas engines; also suitable for biodiesel and gasoline/ethanol blends
Specifications: API SN/CF; ACEA A3/B3, A3/B4; MB approval 229.5; VW 502.00/505.00; Porsche A40; Renault RN0700, RN0710. Meets the requirements of Fiat 9.55535-Z2

Taken from: Access Denied

Ito ang hindi ko maintindihan sa shell oils for diesel engines. Bakit hanggang API CF lang sya but then anlot of casas use this for API CI engines?

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**oj88** · April 4th, 2018 11:38 PM

Originally Posted by JJB

Ito ang hindi ko maintindihan sa shell oils for diesel engines. Bakit hanggang API CF lang sya but then anlot of casas use this for API CI engines?

Because that oil is primarily for gasoline engines. It can be applied to Diesel engines that can take CF oils. It's the same deal with Toyota's Full-Synth oil. It's also SN/CF, that's why I decided to stay away from it (I have a Diesel).

It's basically harder to make an oil that can satisfy the highest API rating for both gasoline and Diesel applications in a single bottle. They do exist, though (ie. SN/CJ-4)... just rare, and probably expensive.

Gasoline and Diesel engines produces different by-products during combustion. It is best to use a dedicated oil with the correct API rating that is meant for the type of engine you have (gasoline or Diesel). This guarantees that the supplied additives are sufficient to counter the effects of the engine's combustion by-products.

**mrstealyourgirl** · April 5th, 2018 01:24 AM

Originally Posted by Archerfish

Then perhaps there wasn't available synthetic oil with the correct viscosity that will match will the old car when I inquired about it. Saving himself about explaining what the numbers stand for, he simply said that I just use mineral oil. Again, I really don't know.

Thank you for clearing this up.

Thats right sir hehe. No problem [emoji106]

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**JJB** · April 5th, 2018 02:18 AM

Originally Posted by oj88

Because that oil is primarily for gasoline engines. It can be applied to Diesel engines that can take CF oils. It's the same deal with Toyota's Full-Synth oil. It's also SN/CF, that's why I decided to stay away from it (I have a Diesel).

It's basically harder to make an oil that can satisfy the highest API rating for both gasoline and Diesel applications in a single bottle. They do exist, though (ie. SN/CJ-4)... just rare, and probably expensive.

Gasoline and Diesel engines produces different by-products during combustion. It is best to use a dedicated oil with the correct API rating that is meant for the type of engine you have (gasoline or Diesel). This guarantees that the supplied additives are sufficient to counter the effects of the engine's combustion by-products.

Hindi lang gasoline engine oil, all of shell’s diesel engine oil is up to CF even their highend helix ultra oil.
Mas mura pa ang caltex delo and Zic x7 oils na CJ-4 rating na.
Why would Shell, being one of the largest oil companies in the world not have CJ compliant oils sa helix line?
(Meron sila CK oil sa rotella line na pang heavy duty diesel na mas pang commercial/truck line)

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**mrstealyourgirl** · April 5th, 2018 02:28 AM

Originally Posted by JJB

Hindi lang gasoline engine oil, all of shell’s diesel engine oil is up to CF even their highend helix ultra oil.
Mas mura pa ang caltex delo and Zic x7 oils na CJ-4 rating na.
Why would Shell, being one of the largest oil companies in the world not have CJ compliant oils sa helix line?
(Meron sila CK oil sa rotella line na pang heavy duty diesel na mas pang commercial/truck line)

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Maybe hindi pumasa or hindi nila pinatest yung Helix Ultra for CJ-4. As far as I know, malaking pera din ang binabayad nila para makuha yang mga certification na yan.

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**JJB** · April 5th, 2018 02:32 AM

Originally Posted by mrstealyourgirl

Maybe hindi pumasa or hindi nila pinatest yung Helix Ultra for CJ-4. As far as I know, malaking pera din ang binabayad nila para makuha yang mga certification na yan.

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But Shell is bigger than caltex or zic naman siguro. Barya lang sa kanila ang certification for sure esp mababawi naman sa sales

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**mrstealyourgirl** · April 5th, 2018 03:02 AM

Originally Posted by JJB

But Shell is bigger than caltex or zic naman siguro. Barya lang sa kanila ang certification for sure esp mababawi naman sa sales

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That’s the only logical reason I can think of. Didn’t test for a more modern API C certification maybe because they did not see it as a necessity. Besides, they are ACEA B4 compliant. That rating is more or less equivalent to API CH.

ACEA = European
API = American

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