I just pulled my valve covers and my heads look like new! There isn't a spec of oil buildup anywhere and my car is driven VERY hard at times. And what is most amazing is the fact that my car has close to 130,000 miles on it. I have been using Mobil 1 for the past 6 oil changes and I have noticed the oil has come out cleaner with each oil change. Expensive as hell, but to me it's worth it. Is that Royal Purple oil better? I can't see how it could be much better, if any after witnessing this.
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Indiana Stangers Association
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