There's nothing wrong with an engine oil additive, some companies actually make useful products (Gasp, ... believe it). Don't be disappointed that the dealer may actually want to help your vehicle last a long time and recommend services that go above and beyond what your maintenance book tells you (i.e. flushing fluids early, switching to higher grade oils and fluids) Face the facts, the maintenance guide is based on cost of ownership during the warranty period. The least the manufacturer says you should do to your car or truck makes it seem like their product is the most cost beneficial to their competition.. People want to know their car costs less to own than the others. But that's just not the way it is. Want an example? GM's antifreeze is supposed to last up to 100,000 miles... but when that contaminated and erosive antifreeze has eaten away at the paper and plastic gaskets and caused a leak at 80k, costing you much-o bucks, do you think GM will cover it? No... because antifreeze hasn't changed, oils haven't changed, nothing has changed. So change them often. Honda, practically the longest lasting cars on the road, have the worst automatic transmission fluid in the industry... but they don't ever recommend flushing it. They hardly even recommend draining and filling it (which is quite useless, anyway). But when that transmission fails after the warranty period because the fluid is black and has clutch material floating around, you definitely don't see Honda take care of the bill on your rebuilt transmission you just had to install. So preventative maintenance should be handled smart, which means you will be spending money... Do you spend $1,200 every 30,000 miles in major service to do it right, or do you wait until something catastrophic happens to your vehicle?... I drive 15,000 miles a year...and hey... breaking it down to $600 a year plus oil changes sounds like the winning decision.
