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    GM 3800 V6 - Valvoline Synpower 5W30 UOA

    Originally Posted By: A_Harman [ I cut apart the M1 filter from my Corvette last night after a season of track days, and it did look good inside, though. The media held its shape despite running in oil that was up to 315F. No evidence of glue failure or split pleats. The ADBV still sealed fine...
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    GM 3800 V6 - Valvoline Synpower 5W30 UOA

    Originally Posted By: 2KBMW Is that miles or km's ? 8000 miles is around 13000 km. Our Saturn Vue's OLM is down to 35% after only 5000 km this winter. Also, the Mobil 1 on sale are 4.4 L jugs. Yes, I converted it to miles here. I went 13000kms, but as I stated, it was mostly all highway...
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    GM 3800 V6 - Valvoline Synpower 5W30 UOA

    Yes, I've been driving it for a week now and the engine runs very quiet and smooth, maybe even better than ever. Though with new oil, it's unfair to compare vs. stuff that has 8000 mi on it back to back. This is the first time I've ever extended beyond 5000 mi and was always curious about...
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    GM 3800 V6 - Valvoline Synpower 5W30 UOA

    Thanks and good to know about the filters, our Canadian Wal-Marts have done away with Fram and now carry only Puro, so I bought that with the Synpower on sale. I went all Mobil 1, oil and filter, this time. It's regularily on special - 5.4L for $29, from an actual auto parts store chain here...
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    GM 3800 V6 - Valvoline Synpower 5W30 UOA

    Hey everyone, new member here who has been doing a ton of reading on this site. I recently ran my 174000 mile supercharged 3.8 GTP with a switch from QSUD to Synpower and a Purolator Synthetic oil filter for 8000 miles at which I finally gave in and changed it due to the color and fear. LOL! The...
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