Why are OEM approvals important? If an oil meets a specific OEM approval, does that guarantee it's the best oil for your vehicle?

MOBIL DELVAC 1 ESP 5W-40. Product Description: Synthetic Base Stocks and ... Diesel engine oil. Uses advised against: None unless specified elsewhere in ... Aug 30, 2022 ... I use 5W-30. Upvote 1. Downvote Award Share ... I found that using a Fram oil filter would reduce the engine oil pressure by as much as 40 ... Apr 8, 2022 ... 2/3 of the guys here would refuse to run 5w-40 in the Sahara desert because of the engineers. they would pass out if I told them the oil I ... Helix HX8 ECT 5W40 C3 Supreme C3-X Synthetic 5W-40, Helix HX8 ECT 5W40 C3 ... The information provided regarding lubricant part number cross references is ... Apr 27, 2020 ... Switching to 5w40 from 10w30 made huge difference in every aspect of running my bikes engine. I suppose 5w40 also being synthetic has a part in ... Jun 27, 2024 ... Castrol Power1 4T 5W-40 Full Synthetic Motorcycle Oil, 1 Quart, Pack of 6 ... The previous post was for informational purposes only. This ... Feb 2, 2015 ... As to my experience to support the informational review above ... 5W-40. Mobil 1 5W-30 was changed to an easier to shear formula, it ... Good price share on Shell Helix Ultra 5w40 Engine Oil · strictly · Dec 3, 2024 ... informational purposes only. Maserati is a registered trademark of ... Mar 4, 2025 ... So, once they form, the only way to get it out of the engine is to let it wear out over about 30-40k ... 5W-30 snake oil er motor oil) and the ... They gave me a Shell Helix Ultra 5W-40 oil. Its written 'For Petrol, diesel and CNG/LPG engines' and 'Fully Synthetic Motor oil' Specifications 'API SN/CF ACEA ...