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Answer:
YES, it is Group IV. Response direct from Castrol: "We formulate using a number of high quality synthetic base oils to ensure high level, superior performance of the products and Group IV is in the Castrol EDGE 0W-40 formulation." Their response was from my email which directed them to the Amazon link of THIS oil. I… see more YES, it is Group IV. Response direct from Castrol: "We formulate using a number of high quality synthetic base oils to ensure high level, superior performance of the products and Group IV is in the Castrol EDGE 0W-40 formulation." Their response was from my email which directed them to the Amazon link of THIS oil. I run this in my E92 BMW M3, fyi. see less YES, it is Group IV. Response direct from Castrol: "We formulate using a number of high quality synthetic base oils to ensure high level, superior performance of the products and Group IV is in the Castrol EDGE 0W-40 formulation." Their response was from my email which directed them to the Amazon link of THIS oil. I run this in my E92 BMW M3, fyi.
BimmerGuy
· February 20, 2018
  • 3
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This is a full Synthetic, I believe the EDGE product line is always fully synthetic. The advantage of using to 0W-20 is usually improved fuel economy or gas mileage. Some newer import engines specify either 5W-20 or 0W-20, but if you can you should use 0W-20 as it generally reduces start-up friction compared to 5W-20. … see more This is a full Synthetic, I believe the EDGE product line is always fully synthetic. The advantage of using to 0W-20 is usually improved fuel economy or gas mileage. Some newer import engines specify either 5W-20 or 0W-20, but if you can you should use 0W-20 as it generally reduces start-up friction compared to 5W-20. Some people are also using 0W-20 even if their engines call for 5W-30 for the benefit of reduced startup wear and improved fuel economy. see less This is a full Synthetic, I believe the EDGE product line is always fully synthetic. The advantage of using to 0W-20 is usually improved fuel economy or gas mileage. Some newer import engines specify either 5W-20 or 0W-20, but if you can you should use 0W-20 as it generally reduces start-up friction compared to 5W-20. Some people are also using 0W-20 even if their engines call for 5W-30 for the benefit of reduced startup wear and improved fuel economy.
2excel
· December 2, 2014
  • 2
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This Castrol oil has around 25% PAO in it's mix. Check out MSDS for a full breakdown.
Consumer advocate
· April 30, 2020
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I checked a virgin oil analysis for this oil, it showed no moly to speak of in the oil. Moly is typically what causes issues in a wet clutch system. I have used Castrol 0-30 in my wet clutch motorcycle and it performs very well. The formulation for the Castrol 0-30 and 0-40 appear to be very close, outside of the vi… see more I checked a virgin oil analysis for this oil, it showed no moly to speak of in the oil. Moly is typically what causes issues in a wet clutch system. I have used Castrol 0-30 in my wet clutch motorcycle and it performs very well. The formulation for the Castrol 0-30 and 0-40 appear to be very close, outside of the viscosity. The 0-30 is considered a "heavy" 30 weight the 0-40 is considered a "light" 40 weight. I would use this oil in my wet clutch applications. see less I checked a virgin oil analysis for this oil, it showed no moly to speak of in the oil. Moly is typically what causes issues in a wet clutch system. I have used Castrol 0-30 in my wet clutch motorcycle and it performs very well. The formulation for the Castrol 0-30 and 0-40 appear to be very close, outside of the viscosity. The 0-30 is considered a "heavy" 30 weight the 0-40 is considered a "light" 40 weight. I would use this oil in my wet clutch applications.
TOYTURBODIESEL
· March 7, 2016
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I did a quick check of the Nissan recommendation for the Sentra SV and the SAE Viscosity grade is0W20. EDGE is a top-tier synthetic product and is API Service Category SN. it will work in your engine, even with 90K miles on it. my son is running it now in his Honda successfully.
Wr
· December 26, 2017
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I didn't notice any difference, but that's just a "seat of the pants" opinion. I didn't have the oil analyzed or anything.
B. Smith
· January 20, 2018
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I remember reading 5 years on another site, might of been bobtheoilguy. You should always shake up your oil before putting it in the engine, to remix the additive package. You should not have a problem, going 2 years.
JRATT
· June 20, 2017
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Answer:
Castrol motor oil contains all the necessary additives to provide complete and superior engine protection. Therefore, we do not recommend the use supplemental additives since Castrol motor oil provides the protection required by vehicle manufactures for the intended application.

If any supplemental additive is requ… see more
Castrol motor oil contains all the necessary additives to provide complete and superior engine protection. Therefore, we do not recommend the use supplemental additives since Castrol motor oil provides the protection required by vehicle manufactures for the intended application.

If any supplemental additive is required by the OEM for your vehicle, please refer to your owner’s manual or the dealership for guidance. see less
Castrol motor oil contains all the necessary additives to provide complete and superior engine protection. Therefore, we do not recommend the use supplemental additives since Castrol motor oil provides the protection required by vehicle manufactures for the intended application.

If any supplemental additive is required by the OEM for your vehicle, please refer to your owner’s manual or the dealership for guidance.

A manufacturer
Manufacturer · July 29, 2019
  • 1
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Answer:
In 2014 March
Alex L.
· January 25, 2015
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Answer:
Yes, you can see "Made in Germany" printed on the back of the label. Not for sale outside the Americas. Underneath that, there is a reference to BP Lubricants USA, Wayne, NJ.
Amy
· April 16, 2018