Originally Posted by ARCOgraphite
Originally Posted by Ws6
Originally Posted by ARCOgraphite
..... Only place for a chain is a cam in block OHV v8.
Disagree. My Nissan's SR20DE did fine to 150K miles when I sold it, and beyond, per the new owner. My 2015 CX5 was fine at 106K miles when I traded it. I refuse to buy a non-chain timing "belt" vehicle.
Please send some of that good luck MY way!
BTW, do you tend to run super high efficiency filters?
On my SR20DE, I ran whatever. I honestly don't recall. I think I picked WIX when it was available, and "whatever oil". Air filter was K&N panel filter/OEM box.
On my 2.5 SkyActiv, I ran OEM filters, and synthetic oil, pretty decent. The OEM filters were dealership, Thailand made, I think. Nothing special. They were not the Japanese ones.
On my VQ37, I used Mobil 1 and Cosworth panel filters, and WIX oil filters. I only kept it 34K miles though.
On my SkyActiv 2.5 Turbo, I use AEM dryflow filter and OEM Japanese oil filters and Mobil 1 5-30EP. 35,6XX miles, no issues.
My dad has owned probably close to a dozen Ford 4.6L vehicles (P71's), and never once had an issue with the timing chain. Most were retired at around 200-250K miles due to oil consumption + catastrophic failure of a major component (head gasket, or another transmission went out and the engine was already gulping oil, so retired the car, etc.). Never once a timing chain problem though that I can recall growing up. He did say on the old 5.0's, it would jump a tooth now and then after 150-200K.
My father always did oil changes at around 3K miles. I do them at 5K mile intervals. Neither of us ever sent of for a UOA, as engines tend to last longer than transmissions and vehicles in general, in our collective experiences.
Timing belts, on the other hand...I never owned one, but a friend who worked at a FCA dealership always had a hefty stack of heads with mangled valves from their PT cruisers and other cars with belts...