I'm new here although I have done PLENTY of general reading before signing up earlier today. I have three V8s and an I6 in my family fleet, each with its own needs. I'd like suggestions on the type of oil to use. I'll be as specific as I can with each vehicle's use, history, future intentions and what oils, using recent knowledge gained from reading through the abundance of information on here, I think could possibly be decent matches to my vehicles. I'll start with the oldest and end with the newest. I use OEM filters for each vehicle and I am from South Texas which means hot and humid most of the time and somewhat cold and humid in the winter.
1999 Jeep Wrangler 4.0 ~97,500 miles
My parents have owned this one since new; oil changes every 5,000 give or take maybe a thousand miles. I can't recall what my father used when it was younger but ever since I have been keeping tabs on maintenance, my dad and I have been using M1 Syn 10W-30 switching between HM and the regular M1 syn. These past two oil changes however, I decided to change it up. First used was M1 AFE 0W-30; it ran fine on this but the low zinc levels concerned me because from what I understand, the 4.0s need higher zinc levels. This past oil change, I went with M1 HM 5W-30; no issues. Most of those miles are city miles with the occasional two hour trip to the beach/random trip on the highway although the past 10,000 miles were predominantly highway miles put on by me. The Jeep will stay in the family; my parents and I plan on keeping it indefinitely. After reading about how awesome GC is, I have been considering it or M1 0W-40. I know these engines can probably run on olive oil because they're so stout but I like synthetics so I won't go to a dino on any application.
2000 Ford Excursion 5.4 ~220,000 miles
My parents are the original owners. Lots of highway miles on this but also plenty of city miles; overall, it sees mixed driving but how we're using it now, it is geared more towards city driving. It has a similar history to the Jeep; same brand but 5W-30. Latest oil change we used M1 regular syn 5W-30. It too will likely be in the family for awhile. Like the Jeep, it seems like GC or M1 0W-40 would make for a good oil in in.
2008 BMW 550i 4.8 ~106,200 miles
This is my current vehicle. I am the third owner. The previous owner, who we purchased it from, maintained it perfectly at his BMW dealership which has been verified by his complete document history and a BMW service report that I acquired at my dealership. So BMW 5W-30 has been the oil of choice. I will likely be taking it to an indy shop who also uses BMW 5W-30; at these miles however, I will not be running the 15,000 OCIs. It sees mixed driving but it will see the occasional two hour plus road trip. I don't have a definitive time frame for keeping it but I need it to be well maintained for the numerous road trips I take. If I don't take it to the indy, my top choices are GC or M1 0W-40.
2012 Hyundai Genesis 5.0 ~20,000
This is a lease which we will have for 36 months. We may or may not purchase it outright after the lease ends. After the FF, I believe my father had the dealership put in either M1 regular syn or M1 EP both being 5W-30. The last oil change, we put in M1 EP 5W-30. Being that it is still under warranty and will be having the dealership change the oil, I am probably best sticking to a viscosity Hyundai states so either 5W-30 or 5W-20. I have not done much reading about the Tau engines but do you all know what these engines like to have lubricating their insides?
In regards to the possible GC applications, is it better to go with the M1 0W-40 with its SN rating due to the higher ethanol content that we unfortunately get with our fuels? Or has GC not really been affected by the higher ethanol content?
I've provided a lot so I hope it is not too much! I appreciate all the feedback that I can get!
1999 Jeep Wrangler 4.0 ~97,500 miles
My parents have owned this one since new; oil changes every 5,000 give or take maybe a thousand miles. I can't recall what my father used when it was younger but ever since I have been keeping tabs on maintenance, my dad and I have been using M1 Syn 10W-30 switching between HM and the regular M1 syn. These past two oil changes however, I decided to change it up. First used was M1 AFE 0W-30; it ran fine on this but the low zinc levels concerned me because from what I understand, the 4.0s need higher zinc levels. This past oil change, I went with M1 HM 5W-30; no issues. Most of those miles are city miles with the occasional two hour trip to the beach/random trip on the highway although the past 10,000 miles were predominantly highway miles put on by me. The Jeep will stay in the family; my parents and I plan on keeping it indefinitely. After reading about how awesome GC is, I have been considering it or M1 0W-40. I know these engines can probably run on olive oil because they're so stout but I like synthetics so I won't go to a dino on any application.
2000 Ford Excursion 5.4 ~220,000 miles
My parents are the original owners. Lots of highway miles on this but also plenty of city miles; overall, it sees mixed driving but how we're using it now, it is geared more towards city driving. It has a similar history to the Jeep; same brand but 5W-30. Latest oil change we used M1 regular syn 5W-30. It too will likely be in the family for awhile. Like the Jeep, it seems like GC or M1 0W-40 would make for a good oil in in.
2008 BMW 550i 4.8 ~106,200 miles
This is my current vehicle. I am the third owner. The previous owner, who we purchased it from, maintained it perfectly at his BMW dealership which has been verified by his complete document history and a BMW service report that I acquired at my dealership. So BMW 5W-30 has been the oil of choice. I will likely be taking it to an indy shop who also uses BMW 5W-30; at these miles however, I will not be running the 15,000 OCIs. It sees mixed driving but it will see the occasional two hour plus road trip. I don't have a definitive time frame for keeping it but I need it to be well maintained for the numerous road trips I take. If I don't take it to the indy, my top choices are GC or M1 0W-40.
2012 Hyundai Genesis 5.0 ~20,000
This is a lease which we will have for 36 months. We may or may not purchase it outright after the lease ends. After the FF, I believe my father had the dealership put in either M1 regular syn or M1 EP both being 5W-30. The last oil change, we put in M1 EP 5W-30. Being that it is still under warranty and will be having the dealership change the oil, I am probably best sticking to a viscosity Hyundai states so either 5W-30 or 5W-20. I have not done much reading about the Tau engines but do you all know what these engines like to have lubricating their insides?
In regards to the possible GC applications, is it better to go with the M1 0W-40 with its SN rating due to the higher ethanol content that we unfortunately get with our fuels? Or has GC not really been affected by the higher ethanol content?
I've provided a lot so I hope it is not too much! I appreciate all the feedback that I can get!
