Engine oil, 5-20 Or?

Foghorn

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The 'net seems to be suggesting that 05-20 or 0-20 oil is too low a viscosity to properly protect bearings etc in many newer engines.
If you own a BS with the 1.5L engine, does this worry you?
Would you run a 1.5L on oil with a viscosity of.. X-30 as a precaution?
Would you do this in a vehicle still under warranty?
Do you believe that frequency of oil changes is the most important factor?
It seems that despite the woes that some BS / 1.5L owners have had with their vehicles, bottom end engine bearing issues is not common.

My comparison of the 1.5L and the new Toyota V35A truck engine shows that both produce similar HP per cylinder, so " stress " does not seem to be a factor. I did not look at torque.

I have 23K miles on my 1.5L and am on my seventh oil change. My low mileage works out to every 6 months rather than a mileage. I take it to the dealer for all maintenance work, including oil changes as he seems to do a good job and does not charge an excessive price. Plus the vehicle is still under warranty and I want to avoid finger-pointing if I have an issue. That is convenient for me, because so far I have been sent a recall notice almost every 6 months.
A buddy of mine who is a real car nut, says he was told by the lab at an oil refinery (that he got them on the phone seems hard to believe ) that the best oil technique is to use oil by the quart, and shake the bottle before you pour it, so you don't leave important additives in the bottom of the bottle. So what happens when the shop uses oil pumped from a drum in the back?
Fog
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thomasm23

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I have 170,000 miles and have been using Motorcraft 5W-20 Synthetic Blend in my 2021 OB with no issues. I only change the oil when the vehicle oil change indicator alerts me.

I have had no engine mechanical issues. The engine runs great.
 
 







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