One oil change in 11000 miles?

afidel wrote:

Busdriver wrote:
6000 miles is not that bad , your heading says 11000, that is 2 many

For a motorhome, probably, but the wife's Grand caravan has gone 11-12k miles between oil changes. It has an oil quality sensor and we change it when indicated. The first time I was a bit sceptical but we sent a retain sample out for analysis and the oil at ~11,400 miles had 20-30% additives left and a fairly low breakdown percentage (was still redish when you looked through it, not blackened)

It's your money, but you might want to give this a bit more research. I've got a good friend who is a top notch independent mechanic. His shop gets at least one engine replacement job, and/or a $3-5K repair job to valve gear, timing chains, heads etc.... that they can directly attribute to changing oil at 10-15K intervals, at least once a week. Manufacturers, including GM and BMW and others, are quietly backing off the 10-15K intervals, by reprogramming software, and issuing TSBs. BMW made a very big deal of extended intervals, then discovered that it made for engines that self-destructing at the 100-125K mile range. I do DIY changes with Mobil 1 Synthetic and an OEM filter, every 5K on my vehicles. When looking for any used vehicles, I will not touch anything without documented changes at the 7K mark, or less. Subaru, GM and many euro luxury brands have all found that extended changes are less than optimal.