When I was working at a dealership, most independent brands such as NAPA and CarQuest were packaged by Valvoline. I'm sure other parts stores oils were packaged by them as well. Years ago Pennzoil and Quaker State were called "Pennsylvania based oils" and contained more paraffin wax which would build up inside an engine to the point of having to be scraped off with a putty knife when you tore it down. They claim that they are cleaner now and they may be because oil comes from all over now. I still shy away from them though. Heck, for years I ran reprocessed oil in high mileage vehicles and couldn't tell the difference.
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Today's Featured Article - A Question for Dads This recent topic from the Tractor Talk discussion board is being highlighted because it is an awesome display of the caliber of individuals that have made this site their own. The young person asking questions received positive feedback and advice from total strangers who "told it like it is" with the care many reserve for their own kids. The advice is timeless... so although it isn't necessarily antique tractor related, it will be prominently displayed in our archives to honor those who have the courage to ask and those who have the courage to respond in an honest, positive manner.
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