Best motor oil/filter

Since my early days riding motorcycles and owning my first vehicles I was fortunate to have the importance of preventative/periodic maintenance instilled in me from my Dad and other influential people. As a result I have always, and continue, to perform the oil changes in all of my family's vehicles. Probably like many of you I have scratched my head as the viscosity of motor oils continue to decrease and wonder how can this stuff be effective if it's so thin. One of my daughters recently bought a new Toyota, the oil it takes is 0w-8!

Many of my questions have been answered as I stumbled across the Youtube channel of Lake Speed Jr. "The Motor Oil Geek". Very informative, and educational for those that have an interest here. After watching his videos I always feel the need to go change my oil, even though it's not due. Good stuff!
 
semicolon said:
Since my early days riding motorcycles and owning my first vehicles I was fortunate to have the importance of preventative/periodic maintenance instilled in me from my Dad and other influential people. As a result I have always, and continue, to perform the oil changes in all of my family's vehicles. Probably like many of you I have scratched my head as the viscosity of motor oils continue to decrease and wonder how can this stuff be effective if it's so thin. One of my daughters recently bought a new Toyota, the oil it takes is 0w-8!

Many of my questions have been answered as I stumbled across the Youtube channel of Lake Speed Jr. "The Motor Oil Geek". Very informative, and educational for those that have an interest here. After watching his videos I always feel the need to go change my oil, even though it's not due. Good stuff!
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his videos are prtty good. been keeping up with him and others regarding the GM 6.2 recall in the trucks and SUV's.
 
semicolon said:
I was curious about that myself, and have considered it, but as I have learned from listening to Lake, changing to higher viscosity can have side effects such as increase in engine temp, and reduced efficiency. I didn't buy a Jeep for efficiency though.
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Agreed, I gave up the concern over mpgs long before getting a Jeep. I am curious, though, if it would help with the lifter tick.
 
Mike Pierson said:
Agreed, I gave up the concern over mpgs long before getting a Jeep. I am curious, though, if it would help with the lifter tick.
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I'm going to try 0W30 in my next JLU oil change for this reason. Going to change it before my upcoming drive to Utah to compare if it runs hotter and if it cuts into mileage results.

My daughter's 2015 JKU 3.6 is quite as hell and has more mileage than my 2018 JLU which has ticked from the 1st oil change but hasn't gotten worse.
 
cozdude said:
no there is not. Engineering Explained does a great video about oil viscosity and why you shouldnt really change what the manufacture recommends. he was mainly talking about the gm 6.2 but the same principals would apply to the 3.6 and other engines.
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From what I’ve read increasing MPG to meet EPA requirements is the primary driver for manufacturers to use lower viscosity oils.
 
jeeeep said:
I'm going to try 0W30 in my next JLU oil change for this reason. Going to change it before my upcoming drive to Utah to compare if it runs hotter and if it cuts into mileage results.

My daughter's 2015 JKU 3.6 is quite as hell and has more mileage than my 2018 JLU which has ticked from the 1st oil change but hasn't gotten worse.
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She’s running 0w30 on hers?
 
Mike Pierson said:
Interested in your results…
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I'll post up how it affects the tick and mileage.

From what I've read and watched, if I keep the JLU at 0W, the slight change to 30 shouldn't matter.

I've been trying to find what changes (critical) made this 3.6 so different from the previous that a 5w-20 couldn't be used; I can't find anything other than to meet new standards.
 
semicolon said:
Based on the GM decision to change viscosity for the 6.2, I’m inclined to change with more confidence it wouldn’t be harmful.
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they are only changing the viscosity on the engines that fit into the recall and pass the inspection. the engines that fail the inspection and get replaced will still run 0-20 after replacement because they will have the proper crankshaft in them.
 
Mike Pierson said:
thoughts on his take?

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yea i saw that one. i personally think that engineering explained is better. plus in regards to the recall, the effected motors have crankshafts that were made in mexico. the crankshafts in the corvette and camaro 6.2L engines (non supercharged that take 0-20 oil) are made out of the plant in NY and they have zero issues. it was a casting concern, not really an oil concern.
 
It is interesting to watch the JL (with 2.0L Turbo engine) oil pressure on the dash. From this, I have noticed that when the engine is lightly loaded, the oil pressure is low but it ramps up quickly if climbing a hill. With the 2.0 Turbo, the engine RPMs barely change. I surmise that either the oil pump dynamically changes its output pressure, or that more tension on the crankcase bearings restricts flow, and thus increases back pressure.

Regardless, it would be interesting to watch the oil pressure before, and after, changing the oil viscosity.
 
bobfriesenhahn said:
It is interesting to watch the JL (with 2.0L Turbo engine) oil pressure on the dash. From this, I have noticed that when the engine is lightly loaded, the oil pressure is low but it ramps up quickly if climbing a hill. With the 2.0 Turbo, the engine RPMs barely change. I surmise that either the oil pump dynamically changes its output pressure, or that more tension on the crankcase bearings restricts flow, and thus increases back pressure.

Regardless, it would be interesting to watch the oil pressure before, and after, changing the oil viscosity.
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I think it would require a pretty precise gauge to measure the difference
 
cozdude said:
yea i saw that one. i personally think that engineering explained is better. plus in regards to the recall, the effected motors have crankshafts that were made in mexico. the crankshafts in the corvette and camaro 6.2L engines (non supercharged that take 0-20 oil) are made out of the plant in NY and they have zero issues. it was a casting concern, not really an oil concern.
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NY did something right🤔
 
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