AR6500 Diesel Treatment

Repeat customer

I recently purchased two containers of Archoil AR6500 Diesel Treatment. I've been using this for several years and find several factors in my favor resulting in this recent purchase. The mileage in my 2000 F350 7.3 diesel has increased by about 10%. That does not sound like much, but any improvement is appreciated. My truck starts much easier than prior to my adding Archoil. I find Archoil beneficial and will continue using it.

The best product on the market

Nothing special

Been using this in our Power strokes for a few months now and there is no difference between this and the Stanadyne all in one. Probably the same chemicals with different branding. It’s actually easier to get the Stanadyne because our local gas station sells it. The arch oil has to be ordered online. We like it, but in all honesty, the all in one standyme is probably better because they sell it as an anti gel in addition to all the other additive benefits.