I use Marvel Mystery oil,along with Power Service. Haven't seen any increase in mileage. I also used what our Cummins dealer said to use with our crappy fuel,but the name escapes me at the moment.
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Two Stroke Oil?
- Thread starter DocDetonancour
- Start Date
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Issue 128 – Digital Version
Digital Magazines
FREE!
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Renew
Subscribe
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Back Issues
Subscription Status
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Buyer's Guides
Ram Diagnostic Trouble Codes
The Perfect Collection
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What Makes Us Tick?
Product Showcase
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