redline vs amsoil
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redline vs amsoil

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    Senior Member jdekruyf's Avatar
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    Default redline vs amsoil

    Want to run a synthetic diesel oil in my duramax. Wondering what everyone's opinions were in regards to redline vs amsoil or any other options out there.

    Thanks
    Last edited by jdekruyf; 09-16-2013 at 05:26 PM.

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    gn7
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    Quote Originally Posted by jdekruyf View Post
    Want to run a synthetic diesel oil in my chevy duramax. Wondering what everyone's opinions were in regards to redline vs amsoil or any other options out there.

    Thanks
    Both are excellent. The Amsoil series 3000 is one of the best.
    Shaeffers is alsoi excellent and you might find it locally. Check there dealers on their website.

    Off the shelf at the big box store I would say Mobil 1



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    They don't have diesel synthetic at Costco. I started mine out with Delvac-1 (Mobil-1), but it proved to be hard to get. Not at every store and, surprisingly, not at every truck store either.

    So, I switched to Rotella T6 5/40. It's available almost everywhere, and is CJ4 rated. Works fine for my rig per Blackstone.
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    Senior Member jdekruyf's Avatar
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    Quote Originally Posted by gn7 View Post
    Both are excellent. The Amsoil series 3000 is one of the best.
    Shaeffers is alsoi excellent and you might find it locally. Check there dealers on their website.

    Off the shelf at the big box store I would say Mobil 1
    Would you also recommend one of their filters as well or would I be good with a Baldwin? And I can't seem to find the 3000 series in anything but 5w-30. Truck is recommended to run 15w-40. Problems with that?
    Last edited by jdekruyf; 09-16-2013 at 06:54 PM.

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    gn7
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    Quote Originally Posted by jdekruyf View Post
    Would you also recommend one of their filters as well or would I be good with a Baldwin?
    Amsoil Mobil 1, K&N, Baldwin, Fleetgard. Donaldson, Wix/Napa All good filters. In don't get real picky inside that group. What ever is easy for you to get your hands on.



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    Quote Originally Posted by gn7 View Post
    Quote Originally Posted by jdekruyf View Post
    Would you also recommend one of their filters as well or would I be good with a Baldwin?
    Amsoil Mobil 1, K&N, Baldwin, Fleetgard. Donaldson, Wix/Napa All good filters. In don't get real picky inside that group. What ever is easy for you to get your hands on.
    10-4. Sorry. Edited my last post right when you replied. Any thoughts on the 5w-30 3000 series? Ok to run?

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    gn7
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    Quote Originally Posted by jdekruyf View Post
    10-4. Sorry. Edited my last post right when you replied. Any thoughts on the 5w-30 3000 series? Ok to run?
    That's the hiccup with the 3000. I'm not going to go there and make that call. Why they don't make it in a XX/40 is beyond me. The Amsoil Premium diesel is still damn good stuff and it does come in XX/40.



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    Quote Originally Posted by gn7 View Post

    That's the hiccup with the 3000. I'm not going to go there and make that call. Why they don't make it in a XX/40 is beyond me. The Amsoil Premium diesel is still damn good stuff and it does come in XX/40.
    Yeah it was weird to me too. Think ill go with the premium since they have the 40 weight. Thanks for the input

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    Quote Originally Posted by jdekruyf View Post
    Yeah it was weird to me too. Think ill go with the premium since they have the 40 weight. Thanks for the input

    I run fleets of diesel trucks

    I would use any of the diesel CJ rated oils

    They say we can go up to 45k miles between oil changes

    I prefer to go up to 20k myself

    For a Duramax maybe 6-8k miles or twice a year

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    Senior Member jdekruyf's Avatar
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    Quote Originally Posted by BigSteve View Post


    I run fleets of diesel trucks

    I would use any of the diesel CJ rated oils

    They say we can go up to 45k miles between oil changes

    I prefer to go up to 20k myself

    For a Duramax maybe 6-8k miles or twice a year
    So even with the syn amsoil, you'd still only go 6-8k?

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    Quote Originally Posted by gn7 View Post
    Both are excellent. The Amsoil series 3000 is one of the best.
    Shaeffers is alsoi excellent and you might find it locally. Check there dealers on their website.

    Off the shelf at the big box store I would say Mobil 1
    I agree 100%! I run Red line in all my race engines (boats, dirt bikes) and Mobil 1 in my trucks/vans/cars.

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    Quote Originally Posted by jdekruyf View Post
    So even with the syn amsoil, you'd still only go 6-8k?
    I agree the syn oils are great stuff

    In diesels motors the CJ-4 rating of todays oil is some good shit
    It's common today to run motors over a million miles using it
    Only thing we do is adjust the valves and jake every 150 k

    I run oil samples on every change, I have found antifreeze in the oil more than a couple times. The mfg has had to fix it free for us, so it has payed off well

    Yes, I like to keep the oil changed more often in the smaller diesels
    and I don't think the syn oil is cost effective in the engine
    but, the transmission and rear ends its the only way to go

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    Senior Member jdekruyf's Avatar
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    Quote Originally Posted by BigSteve View Post
    I agree the syn oils are great stuff

    In diesels motors the CJ-4 rating of todays oil is some good shit
    It's common today to run motors over a million miles using it
    Only thing we do is adjust the valves and jake every 150 k

    I run oil samples on every change, I have found antifreeze in the oil more than a couple times. The mfg has had to fix it free for us, so it has payed off well

    Yes, I like to keep the oil changed more often in the smaller diesels
    and I don't think the syn oil is cost effective in the engine
    but, the transmission and rear ends its the only way to go
    Good info..thanks. And yeah I've been trying to read up as much as possible and saw that even with the syn, the manufacturers still suggest to follow the OEM interval changes. Just a precaution by the manufacturers or is it due to all the emissions crap that doesn't allow for the extended intervals with the syn?

    I just posted another thread in the tow vehicle section if you have any maintenance suggestions out there it would be very much appreciated. This is my first diesel and want the truck to last for a long time.

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    Just my .02. Have suburban with 6.5 diesel with 444,147 miles on it. I have towed cars, boats, and 26Ft enclosed car trailer behind it. Have used Shell Rotella 15-40 in it its whole life. Used Fram filters until reading various threads on this forum and then changed to K&N. Saw about a 5 psi increase in oil pressure. If you are going to change the oil and filters at the recommended intervals I do not see significant benefit of synthetic. I am not saying synthetic is bad, just that a good oil with proper rating in most cases will provide excellent service. I have had many diesels ranging from over the road semis to suburbans and cars and used Rotella, RPM Delo among others. Had a 1977 VW Rabbit with diesel that I ran Aarco graphite in. Had to replace a head gasket at 104,000 miles and cylinder bores were within new spec. Ran it 167,000 miles and sold it to someone else. If you do not already have one, I would recommend an oil and tranmission temperature guage. Good luck with your Duramax.

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