Recommended Oil for Gen 2 Montero SR 3.5 DOHC

[rajin cajun]

What synthetic oil do you recommend for gen2 (1994) Montero 3.5 DOHC? Tried Pennzoil Ultra 10W30 and it sheared. . Attached is my latest UOA. Live in the desert SouthWest. Montero is well maintained and garage kept. Thanks for suggestions.

 

[Michael Brown]

Many people have used the Shell Rotella T6 5W-40 oil with good results.

 

[Offroadmuch]

Is there a reason no one is using OEM Mitsubishi oil? I know there has been a lot of talk about too much zinc in products like Rotella clogging catalytic converters and other issues. It took me a few minutes to find a place that sells it. Just an idea. I am sure there are a lot of good choices that may be just as good. Just FYI-
https://www.mitsubishipartssource.com/p/Mitsubishi__/ENGINE-OIL-CONVENTIONAL/51923255/MZ320266.html
.
From the Mitsubishi website:
.
Recommended Engine Oil
.
•Available in synthetic (0W-20) and conventional (5W-20, 5W-30) grades
•Specially formulated to provide maximum protection from corrosion and reduce engine wear
•Protects against cold starts during extreme weather conditions
Engineered to maintain your vehicle's MPG
Mitsubishi Genuine Full Synthetic 0W-20 oil is specially formulated to provide maximum protection from corrosion, reduce engine wear, and fights formation of sludge and other deposits as well as improved fuel mileage. Special additives allow for a wide range of ambient temperatures, and protects against cold starts during extreme weather conditions. 5W-20 and 5W-30 are premium engine oils formulated using the highest quality oils with an advanced additive system, offering protection against a wide range of weather conditions, protecting against low temperature starts, and improving fuel mileage.
Please consult your owner's manual for the appropriate replacement schedule that's right for your Mitsubishi vehicle.

 

[rajin cajun]

Is there a reason no one is using OEM Mitsubishi oil? I know there has been a lot of talk about too much zinc in products like Rotella clogging catalytic converters and other issues. It took me a few minutes to find a place that sells it. Just an idea. I am sure there are a lot of good choices that may be just as good. Just FYI-
https://www.mitsubishipartssource.com/p/Mitsubishi__/ENGINE-OIL-CONVENTIONAL/51923255/MZ320266.html
.
From the Mitsubishi website:
.
Recommended Engine Oil
.
•Available in synthetic (0W-20) and conventional (5W-20, 5W-30) grades
•Specially formulated to provide maximum protection from corrosion and reduce engine wear
•Protects against cold starts during extreme weather conditions
Engineered to maintain your vehicle's MPG
Mitsubishi Genuine Full Synthetic 0W-20 oil is specially formulated to provide maximum protection from corrosion, reduce engine wear, and fights formation of sludge and other deposits as well as improved fuel mileage. Special additives allow for a wide range of ambient temperatures, and protects against cold starts during extreme weather conditions. 5W-20 and 5W-30 are premium engine oils formulated using the highest quality oils with an advanced additive system, offering protection against a wide range of weather conditions, protecting against low temperature starts, and improving fuel mileage.
Please consult your owner's manual for the appropriate replacement schedule that's right for your Mitsubishi vehicle.

I do have a case of Eneos Sustina (full synthetic) 5w30 that i haven't used. Also, I've been perusing the internet concerning the shell rotella. IdeMitsu is an excellent oil. You make a good point. I may try Red Line in the future. 5,000 OCI are out of the question for my Montero. The Owner manual suggest 7,500 OCI and oil filter change every other OCI. But, I'm going to stick with Severe Service intervals, based on the UOA's.

 

[KyleT]

The no look easy answer is Shell rotella T6 5/40. Read on bobistheoilguy if you want to get even crazier.


Sent from my iPhone using Tapatalk

 

[plh]

I've been using Shell Rotella T6 5w40 in all my trucks for a long time. The '05 has had it in it since I bought it more than 7 years ago and 90K miles.

 

[rajin cajun]

I do have a case of Eneos Sustina (full synthetic) 5w30 that i haven't used. Also, I've been perusing the internet concerning the shell rotella. IdeMitsu is an excellent oil. You make a good point. I may try Red Line in the future. 5,000 OCI are out of the question for my Montero. The Owner manual suggest 7,500 OCI and oil filter change every other OCI. But, I'm going to stick with Severe Service intervals, based on the UOA's.

How is the new CK4 formula? It dropped the moly, calcium, and boron significantly.