Auto manufacturers oil change requirement remains the same during the warranty period. Your vehicle needs to be out of warranty to extend oil change periods beyond their requirement.

My daily driver is an '88 Escort with a 1.9L 4 cylinder and over the life of the car the average oil change has probably been in the 5K-6K mile range on conventional motor oil and now gets an oil change every 10K miles. I've been doing the 10K mile change interval for about the last 40K miles on an engine with 514K miles and never been rebuilt.

As for people who say oil viscosity changes with miles driven, that's true, but in most cases the viscosity doesn't go down it becomes higher. Do.... More

I am 66 years of age and not a trained mechanic. I can afford only used vehicles and have been doing so for the last fourty-five years. Nearly every one of my engines including ford 460's, chrysler 2.5 four cylinders and chevy 3lt. six cylinders have given me in excess of three hundred thousand miles or more. My fredquency of oil changes? About once a year or when my oil light comes on. I dare say that the oil companies don't like to hear that. If they wouldn,t be afraid to sound foolish like.... More

I'm going to estimate around $1,000 for this to be bought and installed. Labor could be higher depending on the vehicle. You shouldn't pay more than $50 per synthetic oil change. When does this thing pay itself off? Between 60k and 100k miles it will start to be worth it. Unfortunately most people sell their vehicles before 100k. That combined with wear and tear and everything else it's pointless.

If this ever got to the point of most vehicles on the road having them it would hurt US jobs.... More

Lately we are considering our planets welfare almost as much as our comfort. Over the past ten years the advances in wind energy technology have begun to have a slight impact on our dependency on oil.We have a machine that now requires a little less energ to build than it can produce over its lifetime. But the damages to our polar caps from the road salt we are dumping in the oceans every winter is still being referred to as GLOBAL WARMING. Try to remember that this was a gaseous fireball.... More

Hay here is a thought!
How do we get congress to get there hands of there duffs and
come up a five year program to eliminate oil from the fuel equation.
President Kennedy issued a challenge to put a man on the moon
in ten years, and we did!, which proves anything is possible.
Of course if the Oil Companies were not controlling Congress.
We as a people get wh at we deserve by not making our Government work for the new fuels and better mileage on cars.More

I have a o1 toyota prerunner 3.4 v6 with 181k on her. i started using synthetic after 30k and have NO problems changing the oil and filter every 5k plus i lube the u-joints with a moly blend grease. plus i have changed the rear end lube with a synthetic. at 60k(it says 90k) i have the timing belt and water pump changed(it's behind the timing belt)
I'm curious about the ads i've seen about puting a magnetic sleeve around the oil filter, suppose to trap any metal particles from the oil. .... More

I have a 2008 Suzuki XLZ and according to the manual and also the automatic notification system in the vehicle, I change my oil once a year or when the system notifies me. My oil usually lasts about 9000 miles with normal city and highway driving and this is APPROVED by my GM/SUZUKI Service dealer in Port Richey FLORIDA.

So you spend $600 on this thing, and it cycles oil thru it, and removes oil impurities. It also says it has filter "repack's that you change out. Isn't that just what a normal oil change does?? Does the addition of this unit replace the regular oil filter or is it necessary to keep using it? If so, then it seems you're paying twice for the same service.

I've used this product since day one for years now. All you do is add to existing oil and extend oil changes up to 7 months! It works!!

That was my opinion about this article...it would cost way more to purchase and install than to merely get extra oil changes, especially if you merely go every 5K, which is easy.
However, I've noticed that when my oil---regular or synthetic--gets dirtier and closer to changing time, I actually get better gas mileage. Not sure why. I've always felt that the oil needs time to "break in", but not 2K+ miles.
I have recently used synthetics in my cars and have found the engine to run.... More

THE LAST THREE TRUCKS I OWNED, I REBUILT THE MOTORS IN THEM,AND GOT WELL OVER , 220,000 MILES ON THEM BY KEEPING THE OIL CHANGED [2500- 3000 MILES], AND KEEPED THEM TUNED.LIKE A [CLEAN, AIR FILTER],[PROPER AIR IN TIRES,] [SPARK PLUG AND WIRES], [DISTRUBUTER CAP AND ROTOR] ON OLDER MODELS,...YOU TAKE CARE OF IT....,AND IT WILL TAKE CARE OF YOU!

I have a 2000 escort zx2 S/R and a 1995 taurus SHO with 99.234.and
98.889 miles. They look and run like brand new. [ oil change every 3 to 6
thousand miles] The MKS my husband just got has already had a oil change at 5000 miles[ dealer recommended 7,500]. My husband tells me, treat them right and they will serve you just fine. We sold a 91 ford
festiva with 103,000 miles and it ran and looked like new.