Mobil 1 HM or Maxlife full synthetic?

Messages
748
Location
Northern Michigan
I've finally used up my stash of PZ Ultra 5W30 (SN version) which I acquired at the local Wally Worlds in the area a couple of years ago (been using it in both the van and the car). At 128,000 miles the minivan has developed a slight drip on the rear oil seal (not much but a couple of spots on the driveway after a couple days). I'm going to switch it over to a high mileage oil and have narrowed my choices down to either Mobil 1 HM or Maxlife Synthetic (both available at WM...less than a dollar difference in price). I used the Mobil 1 HM in my 'ol PT Cruiser for a couple of years and liked it...not familiar with the Maxlife. I see that the Mobil 1 HM (5W30 version) is still SL rated (due to phosphorus and zinc levels?) and the Maxlife is SN. The Maxlife also appears to have more spec approvals (due to it's SN rating?). Granted it's an old van and it may make little difference but just wanted to get opinions here regarding these two oils. Winter temps here are subzero for days on end so I'm not interested in conventional HM oils as I want the better flow properties of the synthetics. The van is due for a change next week...appreciate any input.
 
Messages
13,382
Location
ROCHESTER, NY
Use either! IDK if there is a difference and, I'm not sure if the PQIA has tested the Synthetic Versions of High Mileage Oils, only the conventional versions. Though, the regular MaxLife HM oil is a syn/blend and should flow fine. http://www.pqiamerica.com/June%202014/consolidated%20highmileage2014.html http://www.valvoline.com/pdf/maxlife.pdf http://www.valvoline.com/pdf/maxlife_full_synthetic.pdf http://www.mobil.com/USA-English/Lubes/PDS/NAXXENPVLMOMobil_1_High_Mileage_Oil.aspx http://www.mobil.com/USA-English/Lubes/PDS/NAXXENPVLMOMobil_1_High_Mileage_Oil.aspx Any one of these oils will flow/pour way below -30 deg F and lower depending on which grade you buy. Or whether you use dino or syn/blend or full syn. Hope this helps a little bit! CB smile
 
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Messages
199
Location
Atlanta, Georgia
I run Maxlife red bottle in both the Fords listed in my sig. The 2003 Escape had a drip that ML took down to a much smaller drip. I like ML and would recommend running it with confidence.
 
Messages
375
Location
Missouri
I used MaxLife full syn in our Frontier for 4 OCI's over 2 years. Everything was fine. Then I used Rotella T6 for one OCI, and it started leaking. Ran two OCI's of QS Defy...still spotting. About 2 weeks ago, I went back to MaxLife, SynBlend this time. Stopped leaking within a week. Amazing stuff.
 
Messages
13,382
Location
ROCHESTER, NY
I have used MaxLife & DEFY, in the Firebird in my signature. The MaxLife reduces the drips of oil while the DEFY allows smoother/quieter engine operation.
 
Messages
17,298
Location
OH
For the same money, I'd use M1 HM. For less money, I'd use Maxlife SB. The Nissan V-6 will be fine on syn blend oil even when temperatures are very cold.
 
Messages
3,117
Location
Virginia
Don't know what your OCI is, but for any RMS leak I think MaxLife red bottle is the best bet. I use 5W-30 in my beater Bonneville and it flowed fine last year in that bitter cold winter we had. The same oil will be in there this winter too. I'll get 2 years - 4,000 miles out of it.
 
Messages
236
Location
In the field
Maxlife syn blend red bottle 5w30 has great cold flow properties. Check out the pqia test of high mileage oils and it's at or near the top in that department. That oil sees virtually no negative feedback on this site either.
 
Messages
2,393
Location
Paradise of Florida
Coin toss. Can't go wrong with either. I've used both and don't have a preference. RoyalPurple also has their HMX. And, for those of you near an Oreilly autopart store, they have a store brand synth HM oil. Change your pcv valve if not recent.
 
Messages
13,382
Location
ROCHESTER, NY
Again, any of these HM oils will flow and pour at very low temps. Even the heavier wgts such as 20W50 will flow/pour at -30/-15 F. So, you know that the 5W30 will work just fine in dino or syn.
 
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Messages
1,870
Location
NoVA
I would use the regular High Mileage Maxlife. As said its already a semi-syn and flows well in cold temperatures.
 
Messages
8,051
Location
Michigan
For cold weather, it looks like the Valvoline would give better performance. The 5w30 has a very good MRV of 20000 cP @-35C. Unfortunately, the Mobil spec sheet doesn't give MRV. But the two spec sheets give Pour Point, where VMLS is -42C, while M1HM is -39C.
 
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