My recent response to Amsoil advocate on another site....who quoted per quart price of Pennzoil Ultra... and then compared Amsoil to Mobil 1's leaving deposits.... shell game...
This is used car salesman, or better yet mortgage broker, double talk! I order Pennzoil Ultra from Walmart or Amazon in 5 quart jug. It varies in price a little but I got it last (5w-30, wife's car) from Amazon for $24.97, free shipping with any item to take the order over $25. I also purchased (5w-20) from Walmart for my F-150 for the same amount $24.97, which included free shipping. I bought two as it IS more expensive by the quart, (the number quoted here), and I need 6 quarts for the truck, the remaining 4 quarts does my motorized small engines around the house, or applied to my next change, and or slight top off over the 7K miles. Tip... if you have this same situation... order the second 5 quart jug 5w-30, and use one quart of that with the recommended 5w-20... Mechanics often tell us the thinner oils are for CAFE gas mileage increases and a LITTLE thicker oil is better for wear... and the 5W-30 remaining works great in lawnmower, snow blower... generator etc....(I change once per year) Admittedly, Amsoil is the best oil on the market as any in-depth research will reveal, but in the case of Pennzoil Ultra it is by the the thinnest of margin... yet Amsoil will cost you double, or more with shipping, with no real world benefit! Gee the 700+ HP Hellcat is factory filled with Pennzoil Ultra... my engines don't produce anywhere near the internal pressure this would!! engines, with Pennzoilnecessary Statements like 4X the cleaning ability Amsoil has over some Synthetic can be true, but this too is misleading!!! The amounts that are being referenced, are so small they virtually have no effect of the operation of any engine or its longevity! In the past Fram oil filters were marginal at best... they now however make a Ultra Synthetic oil filter that rivals the best on the market for less than $10 at Walmart, and is rated for 20K miles... once again overkill, but all at a reasonable price... Total Oil change cost... under $35 dollars for the second best oil on the market, and a great filter....I could run 15K miles with confidence!! Like I always tell my kids.... when you are making a purchase... look at the bottom line.... Same Oil change with Amsoil will cost in the area of double the price, with no descendable advantage. Love you Amsoil....(although don't like the misleading arguments), but the competition now requires you lower your prices... I might come back if you do!