Best Oil for Hemi "Tick"

[St-na]

Mobil 1 0w40 probably wears the best as its eurospec with high amounts of ZDDP but the downside of high amounts of ZDDP is that it kills catalytic convertors which is something the delvac crowd may want to pay attention to

The Effects of Zinc Oil Additives on Older Engines | Rislone

Almost everyone who’s into cars has an older vehicle that they love. Whether it’s the feeling that they get behind the wheel or the way the car looks parked in their driveway, they pour their time and effort into maintaining the car and keeping it looking like it’s just been driven off of the...

rislone.com

 

[BowDown]

???
Mobil 1 EP isn't the same as Mobil 1 Euro spec 0w40, two entirely different oils. That said, I wouldn't use any extended protection oil nor would I leave an oil in longer than 7K miles
The guy seems to like the TBN number so...

 

[Spendo81]

Alright, so we are all going to do this then?

0W-20 full synthetic every 5K miles is your best bet for longevity on these engines.

There are some engines that will have bad pins that lead to lifter failure, that's going to happen to 5-10% of these engines regardless of what oil you use. But during the most critical time of engine lubrication, the cold start, you want that lubrication to reach those pins as soon as possible.

I have a 2023 1500 with the 5.7L and the manufacturer recommends 0W-20. However I live in Texas and drive a lot, around 25k miles per year, and have always wondered if I should run something more appropriate for heat. My understanding is 0W-20 is thinner for cold weather and to improve MPG. Maybe 5W-30 or 0W-40. Thoughts?

 

[frisby5]

I have a 2023 1500 with the 5.7L and the manufacturer recommends 0W-20. However I live in Texas and drive a lot, around 25k miles per year, and have always wondered if I should run something more appropriate for heat. My understanding is 0W-20 is thinner for cold weather and to improve MPG. Maybe 5W-30 or 0W-40. Thoughts?

I live in mesa,AZ i just put in 5w-30 Mobil 1 fs , temps here get hot and im also towing now TH with RZR so i need heavier oil ,when i was going up the hills temps were hotter than i liked and i was running 0-20 .

 

[Mr.Grid]

This time around I am doing oil chages no later than at 40% on the oil life monitor and using mopar filters and Castrol Edge 0W20. Im in the camp that keeping the oil fresh is probably the best thing you can do to improve the longevity of these engines rather than any particular brand or viscosity for normal use.

Changing oil more often is the wisest choice imho. I tow 7k# over 60% of the time and change oil at 50% oil indicated or 5k miles whichever is first. The majority of time I’m changing at 4300 – 4500 miles indicating 50%. In late November I made a 3k mile round trip towing and had 2500+ miles on the oil prior to leaving. I changed it knowing it’d be over 50%. CHEAP maintenance, $40 tops diy. I use 0w20 (any MS-6395 rated synthetic) and bought a case of MO-339 filters. Have over 44k miles and changed oil/ filter 11 times. Just bought another case of filters.
0w20 or 5w20 is the same protection. You need to move to 5w30 if you feel you need more.

 

[Mountain Whiskey]

Have you looked at your oil temperature or coolant temperature? I know mine reads the same if it is 5 degrees outside or 95 degrees. It doesn't really change.

Outside air temperature has little to do with the heat of air/gasoline mix burning in your motor.

 

[boogielander]

I have a 2023 1500 with the 5.7L and the manufacturer recommends 0W-20. However I live in Texas and drive a lot, around 25k miles per year, and have always wondered if I should run something more appropriate for heat. My understanding is 0W-20 is thinner for cold weather and to improve MPG. Maybe 5W-30 or 0W-40. Thoughts?

im in socal. i run 0w-40 when i can find it and 5w-40 when i can't.
during my trip to Alaska and Arctic Ocean in August/ September last year I ran 5-40 and then 5-30 when the shop in Anchorage couldn't get their hands on it and then 0-20 when I was in Montana on the return leg because the shop only followed what the book says.
Engine was nice and smooth during my 8-10 hours of driving daily on the first leg of the trip with 5-40, and ambient temp was rarely under 70F.
When 5-30 went in and I was really up north getting constant high 20s to high 30s Fahrenheit, engine ran fine but not as happy as running 5-40.
When 0-20 went in while i was in Montana until almost 4 months after I got back home, I did notice the engine doesn't sound as happy and during desert runs (even in winter).

So, 0-40 or 5-30 in TX is fine.

II also noticed these 5.7s run a lot hotter than similar displacement engines from other manufacturers, that's why I went 0-40 and 5-40 in the first place.

 

[Mountain Whiskey]

So was the engine oil temperature any different during any of the drives you took in different temperatures?

If it was, take it in and get it fixed.

 

[boogielander]

So was the engine oil temperature any different during any of the drives you took in different temperatures?

If it was, take it in and get it fixed.

me? nope oil temp is always at the normal spot.
every morning while out north I also remote start the truck and have a ciggy before i hop in to drive too, get the engine and the cab warmed up a bit. mostly for the seat warmers to get the cushion toasty though lol

 

[Spendo81]

I live in mesa,AZ i just put in 5w-30 Mobil 1 fs , temps here get hot and im also towing now TH with RZR so i need heavier oil ,when i was going up the hills temps were hotter than i liked and i was running 0-20 .

I don't tow very often and when I do it's usually a small dump trailer, maybe 6k lbs max. Last year I added a Vararam CAI and noticed the engine temp during summer months, 100 degrees regularly, was running really hot. Pretty sure engine temp was 250+, which seemed high.

 

[Spendo81]

So was the engine oil temperature any different during any of the drives you took in different temperatures?

If it was, take it in and get it fixed.

Only twice was my oil temp high. Both times it was over 100 degrees outside (oil temp was around 250F) and I was driving 80 MPH.