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    GM 2.8 Duramax - Delvac ESP 5w40 CJ-4 - 5300 miles

    Originally Posted By: CleverUserName Originally Posted By: Shannow Originally Posted By: CleverUserName This is a good article, it is more accurate more accurate...I stopped at the word Yackley. Why is your Yackley "more accurate" than my Yackley ? The jalopnik article is written for...
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    GM 2.8 Duramax - Delvac ESP 5w40 CJ-4 - 5300 miles

    Originally Posted By: CleverUserName Originally Posted By: MichaelArch I'm thinking of doing the same thing. Did your regens shorten? Mine come in around 250 miles every time. Just wondering if this affects regens in any way. I also installed a provent and have been pulling a fair amount of...
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    GM 2.8 Duramax - Delvac ESP 5w40 CJ-4 - 5300 miles

    Originally Posted By: Shannow Originally Posted By: CleverUserName And FYI, GM Duramax Diesels are excellent products, including this new 2.8. The 6.6 and Allison is the best powertrain available in light duty trucks. GM was also the first to pioneer the "9th Injector" for DPF regeneration. They...
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    GM 2.8 Duramax - Delvac ESP 5w40 CJ-4 - 5300 miles

    Originally Posted By: CleverUserName Originally Posted By: edyvw Originally Posted By: CleverUserName Originally Posted By: edyvw Did you take down DPF? If not, this oil will damage DPF much faster then lower SAPS oils like Mobil1 5W30 ESP. Nope emissions system is fully intact and under...
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    AMSOIL AEL 5w-30, Cruze diesel, 10,000

    I have a question for some smarter people than me...What would BioSyn's higher SAPS of 1 have on our emissions equipment. Dexos2 only allows .8. Thank you for any insight anyone can give. Michael
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