Analog camera prices

[eli griggs]

Why not change the oil weekly, then? The oil companies as well as the car manufacturers have rigorously tested their products and would not recommend the intervals they do without being certain the oil will easily perform for as long as they state.

Some put premium gas in a car that clearly only needs regular, thinking that somehow "premium" will be better for the car. A waste of money.

If changing oil weekly floats your boat, feel free to sail throught the slick of your own construction, I won't kick.

However, if I had an auto of premium quality or delicate condition that needed daily rather than 4 month changes to keep it in top flight condition, well, I can't help but feel like that's a moderate service schedule that I can live with, just fine.

Live and let live makes for a more Photographic World.

Season's best
Eli

 

[Craig]

But it’s impossible for anyone to say with authority and for certain, that 3000 mpg, changing engine oil does not keep your car in first class condition, so doing so is just a “best practice“ to avoid most engine related issues.

Sure it is, you do oil analysis. All oils have condemning limits of contamination, change when it gets to that level.

I used to work for a company that built large industrial engines and one customers oil change interval was 45,000 hours of running and another was 300 hours. Same engine, the difference was the fuel quality. One was running on almost pure methane, the other was at a city landfill for a gas-to-power project. Landfill methane is exceptionally contaminated, and the oil change interval reflected that.

Oil change intervals for these engines were specified by the oil contamination levels, not by any time or use interval.

 

[mshchem]

We are going to get slapped by the moderators. My concern is what's the best overall. I've done life testing on compressors with increasingly lower viscosity chasing US DOE requirements for electricity consumption.
It's a not always, what makes sense but what passes an arbitrary regulation.

Landfill methane... I guess that qualifies as Biofuel. Let's make more

 

[mshchem]

I wonder if this is a good time to sell my bulk film back for my F2, film being so cheap and processing being so available

 

[MattKing]

3000 miles is not demanding of any modern motor oil. Recycling takes energy, as well as the delivery of fresh oil to the consumer. Adds up if a lot of people are needlessly changing the oil in their engines at 4 or more times the manufacturer’s recommendations.

FWIW, the manual for our Fiat recommends changes as frequently as every 3500 miles for cars that are used in demanding conditions, and in no circumstances should changes be more than 10,000 miles apart.

 

[mshchem]

FWIW, the manual for our Fiat recommends changes as frequently as every 3500 miles for cars that are used in demanding conditions, and in no circumstances should changes be more than 10,000 miles apart.

When I think about all the amazing technology that can produce 185 hp out of my measly 2.5L 30 mpg, full time all wheel drive. Oil is an easy thing to change, just for cleanliness. I'm not beating it, rarely I pull a small utility trailer. I rebuilt the 2L engine on my Fiat spider, it was easy because it was cared for. (Fiat was the first to use a rubber belt to drive the camshaft(s)). That car and my 68 Impala Custom Coupe are two cars that I wish I still had.