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Reviews (7)
Mar 08, 2016
Will extend your change intervals
1 of 1 found this helpful Have been using Royal Purple in my 2014 Ford F350 6.7L diesel for 90,000 miles. Have extended my change intervals to 20,000 miles, I do an oil analysis every other change and the report says I could go even longer if I wanted to.
Mar 25, 2021
Must have accessory for a diesel truck.
plugs in perfectly, infinitely adjustable, looks factory made, this is the second truck I have installed one on. An excellent product. Becareful who you buy from though.
Oct 01, 2022
Give it a try.
It is a serious upgrade over the stock OEM damper. Excellent value for an immense performance improvement. If it's longevity shines it will be a 5 star product.