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    Does catalytic cleaner fuel additive actually work?

    I've been getting a check engine light about every 500 miles and it's always for "low catalytic efficiency". Doesn't affect driveability but the light prevents my remote start from working. Does catalytic cleaner fuel additive help, or is it snake oil? 2010 Chev Traverse, 135k miles
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    Is it true European service intervals run as high as 20k miles?

    I was just reading comments on an international forum that oil change intervals spec'd by the mfrs can be as much as 20k miles. They think we're nuts for adhering to 3k or 5k. Do the same mfrs spec different intervals depending on destination?
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    "Break in oil" for reman engine

    I bought a 2010 Chevy Traverse 19 months ago & it's spent 7 of those in the shop. Truly a TL/DR post but suffice it to say I'm paranoid now that I've got my truck back & it's running good. It's now got an ATK reman 3.6L. The warranty paperwork says they don't recommend syn oil during the 600...
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    I could use some help interpreting Torque app data

    My truck just got a reman engine (ATK) installed & I picked it up Tuesday. 2010 Traverse 3.6L 128k, bought 2/22 with 103k Broke timing chain. It's running fine with the rebuilt engine but there's a couple things I've noticed when watching real time data that are causing concern. My fuel rail...
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    What will dissolve melted plastic?

    This is a question for all you chemists. I accidently overcooked some plastic capillary tubing and burnt it to a saucepan. Is there a solvent that I can use to remove the plastic but not harm the SS pot?
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    Original Dex Cool or newer Prestone Platinum

    Some people get pretty hung up on using the original recommended fluids but for older cars I believe in using the new improved stuff. Opinions?
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    Gas-oil MIX

    I have a two-part question about 2-stroke fuel. When oil is added to gasoline does it disperse on his own or does it need to be agitated to mix properly? Once mixed, will it separate over time? I just bought a 25 gallon gasoline caddy to use to store fuel for my two-stroke pontoon outboard and...
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    The current thinking on "multi-purpose" 2-c oil?

    I've read some of the older posts on the subject but now that these oils are neither "new" or "rare" I'd like to know if they're more acceptable? I'm investigating this because I have a cottage with 3 outboards, chainsaw, and a trimmer. I'd like to be able to keep one gas/oil mix around because...
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