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  1. U

    Will Using This Diesel Oil Hurt My Catalytic Converter?

    I thought since “The Big Beautiful Bill” was passed, emissions testing is a thing of the past.
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    old school 700-15s to newer metric

    Try 215/75r15. Back in the day it was my go to size for mini vans and what not. www.tiresize.com
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    Which oil would you choose? Seeing specs only

    The best over the counter Diesel engine oil for all weather is Delvac 0W40. Sadly it’s out of my price range.
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    AGAIN...what's the 'best' engine oil for me?

    Locomotives have auxiliary turbo pumps that run for several minutes after the engine shuts down for any reason. I didn’t know that the 60 year old technology finally tricked down to passenger cars and trucks. Which oil? If money is no object, Chevron Supreme SAE 40.
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    2 Stroke trimmer engine break in

    My Husqvarna FR 336 is 7 years old with about 300 hours on it running 30:1 and E-zero 91. No smoke.
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    Determining the Proper Oil for Your Engine - Email from Lake Speed Jr

    Shampoo? What’s that? An EP additive? After decades of using Sunlight dish soap in the shower, I finally switched to Dawn.
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    Determining the Proper Oil for Your Engine - Email from Lake Speed Jr

    Performing UOAs during the break-in period sounds like a waste of time and money.
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    Mounting a tire using fire

    The tire shop I frequent had to use starter fluid to seat 295/65r20 Toyo CTs and 295/55r20 Nitto EXOs on 20x10 Fuel wheels.
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    Lake Speed Junior High Zinc Oil new video

    Three pulls on a dyno with a 70 year old engine design with a flat tappet camshaft followed by a used oil analysis. Isn’t that the industry standard?
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    Lake Speed Junior High Zinc Oil new video

    TV Congratulations on your 40,000th post. Finally one that I agree with.
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    Lake Speed Junior High Zinc Oil new video

    Comp Cams can measure wear down to a millionth of an inch. Flat tappet cams for NASCAR have welded lobes and use the Ford diameter .875” direct lube (Howard’s Cams) lifters. In this application the lifters will fail before the camshaft lobes round off. The cam and lifters only have to last the...
  12. U

    Post your latest oil filter change

    In the navy you can sail the seven seas. In the navy you can put your mind at ease.
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    Best Off-the-Shelf xW-40 or xW-50 Oil....that Cleans?

    Could be the 38 year old valve seals. For cleaning up the rings and grooves, Delo or Duron SAE 40 works for me without the snake oil additives.
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    Mercedes V8 Canada 229.52 or 229.61

    Go around the back of a MB dealership near the shop entrance and you will find empty M1 0W40 FS and Mobil synthetic ATF drums. I took a photo with my phone when a service writer wouldn’t sell me a transmission pan gasket. He was gone for about five minutes and said it will be about $250. For...
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    22 long rifle and 22 magnum

    Back in the day we used to shoot .22 short in LR rifles because that’s what we could afford at 12 years old. It didn’t take long before we couldn’t close the bolt on LRs without getting in there with a wire brush on a drill.
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    Lake Speed Junior High Zinc Oil new video

    How does LSJ test engine oils? No API, ACEA or other governing body certifications or manufacturers’ tests or approvals. Just three pulls on a dyno with a 70 year old engine design with a ft camshaft followed by a UOA. Thankfully nobody here is falling for it.
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    Post your latest 2 stroke mix

    Yesterday; 200ml Husqvarna XP oil plus 6L premium E-zero boat gas = 30:1
  18. U

    Any 10w-30 HDEO users?

    Duron 10w30, and PC just rolled out a synthetic offering. 91-12.3-3.6
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    oil filter change interval for 7.3L PSD?

    My deleted LML Duramax stays clean like that. Before the delete, it would be black the next day. With the price of oil filters doubling in the last few years, you might as well get your money’s worth.
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