Mackiesback
Full Member
- Joined
- Jan 26, 2014
- Messages
- 521
- Reaction score
- 57
- Points
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- Location
- MInnesota
- Buick Ownership
- 2017 Buick Regal Premium II-Trifecta Tune
I have seen an oil analysis of synthetic oil after 7500 miles and there was still life left in the oil. That is real world results not just speculation. This is 2020 not 1980 so obviously some of you need to get up to date on the longevity of motor oil.
I was a Mobil distributor in the late 70s when Mobil 1 was a new thing and they were recommending 25k on the oil with filter changes every 5-10k. Lets not pretend these extended intervals and recommendations are a 2020 thing. Reality is the 2.4 had issues with oil passages clogging and GMs fix was to adjust the OLM intervals. That doesn't sound like a manufacturer that has a 100% handle on what oil life in their products should really be. Besides, you are talking full synthetics. Is that what the manufacturer recommends using for these 7500-10k intervals? I am not sure that it is. I think these intervals are dino oil.
Not being a fan of big ticket repairs, I will continue to change my oil with full synthetic at 50% indicator life. It's not very expensive.
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