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    Electrical Mystery-Battery or Parasitic Draw or ?

    2012 Acura MDX 65,000 miles. Slightly over 3 years ago put in OEM Acura battery with 3 yr free replacement and 8 yr prorated. I would get about $90 towards a $155 OEM battery if it was defective just beyond 3 yrs. Car wouldn't start. Fully charged battery--no go. Fully charged again and hand...
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    PHEV First Oil Change Timing

    Have a new 2022 Lincoln Corsair GT PHEV. Per manual, OLM should come on between 7,500 - 10,000 miles normal driving or 5,000 - 7,500 severe driving. I would say I'm normal. Manual doesn't differentiate between PHEV & ICE version (which makes no sense). Dealer suggested for first oil change...
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    Plug-In Hybrid Potential Issue

    Thinking about a plug-in hybrid (PHEV). They have all-electric range of maybe 30-40-50 miles. That would cover most of my local driving in a typical day and can charge with some residential solar panel overproduction in the spring & fall that would otherwise go down the drain. If most of the...
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    Chevron Techron Fuel Injector Cleaner

    Any idea on the shelf life of Chevron Techron Fuel Injector Cleaner? I have a couple of bottles left that are probably 5-6 years old. Since I always use Top Tier gas, I only use Techron occasionally, maybe once every 5,000 - 10,000 miles. Two engines are GM DI, not sure about the 2012 Acura...
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    Change today or wait for OLM?

    My 90-year old father-in-law has a 2017 Lincoln Continental with the twin-turbo, 400HP, 3.0-liter GTDI V6 engine. Bought used from Lincoln dealer In September 2020. Per invoice, dealer changed oil in September at 33,770 with 6 quarts of V0-5W30, part # SYN-BLE 004768. I'm surprised they didn't...
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    Change oil now or later?

    2010 Cadillac CTS V6, 36,600 miles. 13 months and 870 miles since last oil change at dealer with full synthetic Dexos. OLM says 92% left. I usually drive it long enough to warm up oil--few, if any, short trips in four-season midwest. Going on a 3,000 mile road trip. Would like to wait until I...
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    Mobil 1 vs ACDelco dexos synthetic blend

    I have a 2010 Cadillac CTS 3.6L. OEM oil is Mobil 1 5W-30, says so in the manual and on the cap. Brought it to Cadillac dealer assuming they would put Mobil 1 in. Reading invoice after the fact, it said, "dexos syn blend oil." Presumably it was GM's own ACDelco. Dealer said that was now the...
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