2023 Lexus RX350’s Good Book specifies 0W-16 oil.
Mobil1 has 0W-20 High Mileage full synthetic oil “for engines 75,000+”.
At 192k, with no leaks, use High Mileage, or continue with 0W-16?
Thank you.
There is your answer
You are indeed a flunkie if you can’t wrap your head around using the viscosity listed in the owner manual
2 Likes
RG , just do what ever you want to do because you will argue anyway.
1 Like
I think I read somewhere that using an old electric frying pan underneath the oil pan allows one to use a different viscosity than the manufacturer specifies.
4 Likes
It must not be a teflon-coated electric fry pan.
Yes. One may use a higher viscosity because the oil is not as cold.
But what about Mobil1, our source of allubrication trvth and knowledge?
You drive a lot. What’s ur mpg now with 0-16? Try 0-20 which will work fine and see if mileage changes at all. They say it’s all about mpg so let’s see.
Do they make hi mileage 0-16?
Or only 0-20 version.
Is this a stop leak issue?
1 Like
No, “high mileage oil” is for cars with lots of miles, not to improve the mpgs.
OP, use the specified oil. What makes you think Mobil is telling you anything different?
2 Likes
When I try to do mileage efficiency, a hospital calls for an emergentransport.
Stronger acceleration and higher speeds (higher wind resistance) ruins fuel mileage.
Heading to Vail for a postpartum hemorrhage up hill againstrong headwinds used almost half a tank of gas.
But being blown east was great gas mileage!
Need to learn how to access the RX350’s fuel milege log.
After rushing blood and platelets to Moab, Utah, (plan to submit the trip to Guinness Book of World Records) I wanted to remove the lightbar from the roof to reduce windrag.
Four bolts but tools were home.
Mobil1 has 0W-20 High Mileage full synthetic oil “for engines 75,000+”.
Oil weight will make a fuel consumption difference for 100,000 vehicles collectively, but for just one vehicle the improvement would be very difficult to measure.
1 Like
Who says? Higher viscosity will reduce mpgs.
How much oil is your vehicle consuming now, quarts/miles?
Why do they spec 0-16 vs 10-30?
MPG - Nothing else.