Ok, here's my scenario. I have a 1993 Chevy PU with 150,000 miles. 350cid, 2wd. Bought new. Used Quaker State 10w30 its whole life. Runs good. Regular OC's. Burns about a quart every 2500 - 3000 miles. Driven mainly short trips, 15-25 miles, and in-town driving. I live in a small town(8000 pop.), so its not driven in real nasty traffic. Im planning on my next OC, to change over to the Quaker State High Mileage 5w30. Will be using Baldwin filters. Thinking about using MMO every other, or every third OC. Also considering using the Lubro-moly MOS2 on OC's when not adding the MMO. Confused yet? Anyways, what's you guys opinions? How long should I go between OCI? Are the MMO & MOS2 intervals a good idea? Are they too close together? How long should I go on this OCI interval? I also have a 1999 Blazer with basically the same scenario. 180,000 miles. 4.3 V-6. Same oil. Planning on going to the Quaker State High Mileage 5w30 with it too. Along with the additives every once in a while. What do you guys think?
MMO & MOS2 on new OCI plan
- Thread starter kasedian
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Wow sounds like you have taken care of those engines well! I fight the urge to add stuff to my engines all the time, I will probably give you an answer you don't want but, you have a great schedule going, your vehicles run well, I would save the money and stick with what you are doing. If you want to try the High Mileage oil to see if your consumption goes down great. I think the oil co's are doing a pretty good job with their additive packages, MMO in the gas and the last 500mi. of the OCI sounds like a plan. That MOS2 is a waste of $$. Been there done that. Keep up the great maintenance!
^+1, exactly Turbo.
Since both are relatively inexpensive(both should be obtainable for under $5), try them separately at first. See if the MoS2 will yield any MPG increase, or smooth out the engine some over the course of the interval.
Your approach is very much like a kid in a sandbox, you aren't getting into uncharted/dangerous territory with your approach. I wouldn't use MMO over the course of an entire OCI forever, perhaps your every 3rd OCI idea isn't 'bad'.
As long as you can continue to top off(you do top off since you lose oil during the interval, right?), then the MMO won't run 'too thin' for you either.
FWIW, if it were me I'd try Rotella T5 in the blazer. My dad had late 90s models S-10s and now has a 2001, also we had a 2000 Blazer(now 2004 with lower mileage). I'd switch the S-10 PU to T6 if he'd let me and the Blazer over to T5. I may have to settle on T5 for both.
Though, a HM may be a worthwhile shot to see if the seals get affected and your consumption goes down.
Since both are relatively inexpensive(both should be obtainable for under $5), try them separately at first. See if the MoS2 will yield any MPG increase, or smooth out the engine some over the course of the interval.
Your approach is very much like a kid in a sandbox, you aren't getting into uncharted/dangerous territory with your approach. I wouldn't use MMO over the course of an entire OCI forever, perhaps your every 3rd OCI idea isn't 'bad'.
As long as you can continue to top off(you do top off since you lose oil during the interval, right?), then the MMO won't run 'too thin' for you either.
FWIW, if it were me I'd try Rotella T5 in the blazer. My dad had late 90s models S-10s and now has a 2001, also we had a 2000 Blazer(now 2004 with lower mileage). I'd switch the S-10 PU to T6 if he'd let me and the Blazer over to T5. I may have to settle on T5 for both.
Though, a HM may be a worthwhile shot to see if the seals get affected and your consumption goes down.
Originally Posted By: kasedian
Ok, here's my scenario. I have a 1993 Chevy PU with 150,000 miles. 350cid, 2wd. Bought new. Used Quaker State 10w30 its whole life. Runs good. Regular OC's. Burns about a quart every 2500 - 3000 miles. Driven mainly short trips, 15-25 miles, and in-town driving. I live in a small town(8000 pop.), so its not driven in real nasty traffic. Im planning on my next OC, to change over to the Quaker State High Mileage 5w30. Will be using Baldwin filters. Thinking about using MMO every other, or every third OC. Also considering using the Lubro-moly MOS2 on OC's when not adding the MMO. Confused yet? Anyways, what's you guys opinions? How long should I go between OCI? Are the MMO & MOS2 intervals a good idea? Are they too close together? How long should I go on this OCI interval? I also have a 1999 Blazer with basically the same scenario. 180,000 miles. 4.3 V-6. Same oil. Planning on going to the Quaker State High Mileage 5w30 with it too. Along with the additives every once in a while. What do you guys think?
I think you have a good plan, several members I know are doing something very similar. I've had good results with both products. Here's a suggestion, since you aren't driving much you can probably do two dino 6 mth or 5000 mile OCI's a year. You didn't mention how many miles/yr you're driving. Add your MoS2 for the spring summer OCI, and MMO for the winter. You'll enjoy easier cold starts during the winter and be cleaning/keeping your engine clean. There will also be a residual effect from the spring summer MoS2 addition to your oil. HTH
Ok, here's my scenario. I have a 1993 Chevy PU with 150,000 miles. 350cid, 2wd. Bought new. Used Quaker State 10w30 its whole life. Runs good. Regular OC's. Burns about a quart every 2500 - 3000 miles. Driven mainly short trips, 15-25 miles, and in-town driving. I live in a small town(8000 pop.), so its not driven in real nasty traffic. Im planning on my next OC, to change over to the Quaker State High Mileage 5w30. Will be using Baldwin filters. Thinking about using MMO every other, or every third OC. Also considering using the Lubro-moly MOS2 on OC's when not adding the MMO. Confused yet? Anyways, what's you guys opinions? How long should I go between OCI? Are the MMO & MOS2 intervals a good idea? Are they too close together? How long should I go on this OCI interval? I also have a 1999 Blazer with basically the same scenario. 180,000 miles. 4.3 V-6. Same oil. Planning on going to the Quaker State High Mileage 5w30 with it too. Along with the additives every once in a while. What do you guys think?
I think you have a good plan, several members I know are doing something very similar. I've had good results with both products. Here's a suggestion, since you aren't driving much you can probably do two dino 6 mth or 5000 mile OCI's a year. You didn't mention how many miles/yr you're driving. Add your MoS2 for the spring summer OCI, and MMO for the winter. You'll enjoy easier cold starts during the winter and be cleaning/keeping your engine clean. There will also be a residual effect from the spring summer MoS2 addition to your oil. HTH
MMO is a great product, but I would use it where slow cleaning is required (e.g. sludge). Considering you know the history of the vehicle, and have documented oil changes, I would doubt your engine is sludged.
If I can make a suggestion, I would highly recommend Liqui-Moly/Lubro-Moly Pro-Line Engine Flush to clean your ring packs. Given that you burn a quart every 2,500-3,000 miles, I would imagine the ring packs have accumulated some dirt, carbon, etc. which may affect their ability to seal properly. If this is something of interest, I would flush the engine and use the same oil (Quaker State 10w30) for one interval to see if there is any reduction in oil consumption. I reckon that might be a fair comparison to see the benefits.
As far as the MMO vs. MoS2 debate is concerned, I have used both and it would be hard to pick one over the other. But I would really just settle for one as opposed to alternating between the two. As difficult as it may be to settle on one, I would really just break it down to expectations.
Based on a VOA posted here, the primary ingredient in MMO is phosphorus, which is another anti-wear additive. If better wear protection is a concern, I suppose I would be comparing phosphorus to molybdenum to see which is more beneficial.
If I can make a suggestion, I would highly recommend Liqui-Moly/Lubro-Moly Pro-Line Engine Flush to clean your ring packs. Given that you burn a quart every 2,500-3,000 miles, I would imagine the ring packs have accumulated some dirt, carbon, etc. which may affect their ability to seal properly. If this is something of interest, I would flush the engine and use the same oil (Quaker State 10w30) for one interval to see if there is any reduction in oil consumption. I reckon that might be a fair comparison to see the benefits.
As far as the MMO vs. MoS2 debate is concerned, I have used both and it would be hard to pick one over the other. But I would really just settle for one as opposed to alternating between the two. As difficult as it may be to settle on one, I would really just break it down to expectations.
Based on a VOA posted here, the primary ingredient in MMO is phosphorus, which is another anti-wear additive. If better wear protection is a concern, I suppose I would be comparing phosphorus to molybdenum to see which is more beneficial.
I like the suggestions by demarpaint and Falcon. I believe what the OP wants is MMO to encourage maintenance cleaning and MoS2 for anti-friction. I like dmp's suggestion on when to use one or the other. Residual effects of the MoS2 should remain for at least one OCI after use.
i think an mmo run every now and then is a great idea. as far as other additives...what ever floats your boat
Ok. Thanks to all who have contributed. Very much appreciated. Here is what I think im going to do.
OCI #1:
New oil + filter
OCI #2:
New oil + MOS2 + filter
OCI #3:
New oil + filter
OCI #4:
New oil + MMO + filter
Ill keep that rotation on both vehicles. I was thinking about going 4000 - 5000 miles on each OCI. And on the OCI's with the MMO added, I will add the MMO with 1000 - 1500 miles to go on the OCI. How does that sound? Thanks all!
OCI #1:
New oil + filter
OCI #2:
New oil + MOS2 + filter
OCI #3:
New oil + filter
OCI #4:
New oil + MMO + filter
Ill keep that rotation on both vehicles. I was thinking about going 4000 - 5000 miles on each OCI. And on the OCI's with the MMO added, I will add the MMO with 1000 - 1500 miles to go on the OCI. How does that sound? Thanks all!
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Not a bad idea, though, if it were me I'd just run a short 3,000 mile OCI with MMO added at the time of oil change(or add during the last of an interval if it winds up being in the summer when you are wanting to use MMO).
Originally Posted By: kasedian
Ok. Thanks to all who have contributed. Very much appreciated. Here is what I think im going to do.
OCI #1:
New oil + filter
OCI #2:
New oil + MOS2 + filter
OCI #3:
New oil + filter
OCI #4:
New oil + MMO + filter
Ill keep that rotation on both vehicles. I was thinking about going 4000 - 5000 miles on each OCI. And on the OCI's with the MMO added, I will add the MMO with 1000 - 1500 miles to go on the OCI. How does that sound? Thanks all!
Your plan is fine if the engine is really clean, and you want to keep it that way. If you want to do some real cleaning do as I mentioned above for at least one OCI, then switch to your plan to keep things clean. MMO is not going to hurt your engine. I usually run MMO during the winter because it really makes a difference in how an engine turns over in very cold weather. Opinions vary, its been working well for me using it that way since the 70's, and in some of my father's cars before that.
Ok. Thanks to all who have contributed. Very much appreciated. Here is what I think im going to do.
OCI #1:
New oil + filter
OCI #2:
New oil + MOS2 + filter
OCI #3:
New oil + filter
OCI #4:
New oil + MMO + filter
Ill keep that rotation on both vehicles. I was thinking about going 4000 - 5000 miles on each OCI. And on the OCI's with the MMO added, I will add the MMO with 1000 - 1500 miles to go on the OCI. How does that sound? Thanks all!
Your plan is fine if the engine is really clean, and you want to keep it that way. If you want to do some real cleaning do as I mentioned above for at least one OCI, then switch to your plan to keep things clean. MMO is not going to hurt your engine. I usually run MMO during the winter because it really makes a difference in how an engine turns over in very cold weather. Opinions vary, its been working well for me using it that way since the 70's, and in some of my father's cars before that.
I 2nd the motion to swing your service intervals for MMO to winter use and try out dmp's suggest. Otherwise, you've got a plan that seems to be just fine.
Hey, thanks guys. I have about 1800 miles to go til the next OCI. Ill add MMO to it tomorrow. When the OCI comes due, Ill chage it out to the Quaker State High Mileage 5w30 with nothing else. Then, the next OCI, probably be mid summer, Ill change oil and add the MOS2. You guys are a valuable asset to BITOG. Thanks again!
Keep us updated. Its always nice to hear how these products are working for people!
Use MMO in the engine only if you need it.
You have to have definite reasons.
But the Lubro Moly is nice . Great for the engine and makes it run more efficiently , too.
You have to have definite reasons.
But the Lubro Moly is nice . Great for the engine and makes it run more efficiently , too.
How long does anyone run mos2 with syn oils? For example mobil ep? full oci? Should you reduce the oci? Put it in the last 2k?
Originally Posted By: spasm3
How long does anyone run mos2 with syn oils? For example mobil ep? full oci? Should you reduce the oci? Put it in the last 2k?
You can run it for as long as the oil is in service, no problem. There's no need to reduce your drain intervals.
How long does anyone run mos2 with syn oils? For example mobil ep? full oci? Should you reduce the oci? Put it in the last 2k?
You can run it for as long as the oil is in service, no problem. There's no need to reduce your drain intervals.
I'd get it in there as soon as possible.
For sure!
It is also not drain interval dependent.
For sure!
It is also not drain interval dependent.
How about this, Lubro-Moly for the warmer months, like spring and summer, and then use MMO for the colder months, like fall and winter. JMO
I have had great results with the liqui-moly/lubro-moly products in my higher mileage truck and in my mustang. In an industry dominated by snake oil it's nice to find a product that does what it says it will do. I get better mileage since the addition of liqui-moly and my idle went up by a couple hundred rpm. The computer corrected itself after the 4th tank of gas so I attribute it to less friction inside the motor but the ecu was still pumping the same amount of fuel in until it re-leaned that it needed less to maintain idle speed. Great stuff. I buy all of it when at napa
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