Hey All -
I'm a soon-to-be first time Jeep owner come mid-July as I have a sting grey Rubicon 4xe on the way and I'm excited to join the Jeep community!
Doing some preliminary research as I do before I buy cars, the topic of oil selection is one of the first things I generally try to address from a maintenance perspective, even before mods and other things. For context, my current daily driver is a 2016 BMW M6 Gran Coupe and I have always had really good experience using Liqui Moly fluids in all of my German cars, however this will be my first FCA vehicle and am unsure if I should be applying what I've learned on my previous vehicles to this one.
With the BMW, the factory calls for 5W-30 full synthetic, but the general consensus among owners circles is to use a 5W-40 oil to better protect the engine in higher temp ranges as it typically shears down to a 30 weight at full operating temp (the twin turbo V8 generates a lot of heat, particularly in the two cylinders closest to the firewall so having an oil that doesn't break down under the additional heat in order to prolong rod bearing life is important for longevity)
My question is this: should I apply my previous experience using a 5W-40 oil with the anticipation that it will shear down to a 30 weight at temp so the internals remain protected, or do these engines typically not generate enough heat at operating temp for it to be a factor and I should just stick to 5W-30? Consistent summertime oil temps in my M6 are usually in the 195-205F range for reference.
Thanks in advance for your help!
I'm a soon-to-be first time Jeep owner come mid-July as I have a sting grey Rubicon 4xe on the way and I'm excited to join the Jeep community!
Doing some preliminary research as I do before I buy cars, the topic of oil selection is one of the first things I generally try to address from a maintenance perspective, even before mods and other things. For context, my current daily driver is a 2016 BMW M6 Gran Coupe and I have always had really good experience using Liqui Moly fluids in all of my German cars, however this will be my first FCA vehicle and am unsure if I should be applying what I've learned on my previous vehicles to this one.
With the BMW, the factory calls for 5W-30 full synthetic, but the general consensus among owners circles is to use a 5W-40 oil to better protect the engine in higher temp ranges as it typically shears down to a 30 weight at full operating temp (the twin turbo V8 generates a lot of heat, particularly in the two cylinders closest to the firewall so having an oil that doesn't break down under the additional heat in order to prolong rod bearing life is important for longevity)
My question is this: should I apply my previous experience using a 5W-40 oil with the anticipation that it will shear down to a 30 weight at temp so the internals remain protected, or do these engines typically not generate enough heat at operating temp for it to be a factor and I should just stick to 5W-30? Consistent summertime oil temps in my M6 are usually in the 195-205F range for reference.
Thanks in advance for your help!