3.0 Ford Ecoboost at 45k miles
Guys, I've been using Ravenol DXG 5W-30 for the past ~30k miles it's fully certified as per Ford, Acea, ILSAC, Dexos, etc., it's additivized with Tungsten, Molybdenum, OFC, etc. Had no problems, changed it every 4 to 5k miles.
Here's the question:
I couldn't resist buying 7qt of Motorcraft Synthetic 5W-30 this spring as well as a bottle of Motorcraft 75W-140 for the PTU.
Now it sits in the box and makes me nervous.
Side note: what made me curious was that at 15k mi the Ravenol in the PTU looked worse than the OE Motorcraft at 20k mi.
So, there's this belief that problems occur when changing brands and types of oil. It's believed that problems occur in the process when the new oil washes away the special additives of the previous brand.
With 7 oil changes with the Ravenol I consider the engine is completely surfaced with tungsten and Moly.
Would you risk and pour in the Motorcraft just out of curiosity?
I want to see whether the engine will change mechanical noise, whether it will be more efficient, things like that.
Then I plan returning to the Ravenol.
P. S. I've read the suggested related threads. I want scientific answers, not "I did it for 200k mi and no problems" ...
I also picked up the opinion that problems occur after brand switch from the present forum.
Guys, I've been using Ravenol DXG 5W-30 for the past ~30k miles it's fully certified as per Ford, Acea, ILSAC, Dexos, etc., it's additivized with Tungsten, Molybdenum, OFC, etc. Had no problems, changed it every 4 to 5k miles.
Here's the question:
I couldn't resist buying 7qt of Motorcraft Synthetic 5W-30 this spring as well as a bottle of Motorcraft 75W-140 for the PTU.
Now it sits in the box and makes me nervous.
Side note: what made me curious was that at 15k mi the Ravenol in the PTU looked worse than the OE Motorcraft at 20k mi.
So, there's this belief that problems occur when changing brands and types of oil. It's believed that problems occur in the process when the new oil washes away the special additives of the previous brand.
With 7 oil changes with the Ravenol I consider the engine is completely surfaced with tungsten and Moly.
Would you risk and pour in the Motorcraft just out of curiosity?
I want to see whether the engine will change mechanical noise, whether it will be more efficient, things like that.
Then I plan returning to the Ravenol.
P. S. I've read the suggested related threads. I want scientific answers, not "I did it for 200k mi and no problems" ...
I also picked up the opinion that problems occur after brand switch from the present forum.