I have been performing about 10 oil changes each week on Toyota vehicles with 10,000 mile oil changes for almost 10 years, I have not seen any engine failures. The sludged engines that I see are ones that use conventional oil that have been neglected.
The engines that we replace have failed because of overheating, not oil problems. When vehicle problems develop we usually see them long before the public becomes aware of them.
There are plenty of cars you can see. Iām not saying infallible truth. You donāt see to understand.
10,000 miles is nothing. I have 202,000 miles on my Honda Accord and my dadās Accord has 275,000 miles. Well maintained cars, and I know I can find every record from brand new checking at the dealership or on car fax. Iām not talking about uncle Billy changing his oil in his garage on Saturday mornings kind of records. Manufacturer records, and they do exist if you look for them.
No, you donāt seem to understand what Carfax is.It only reports what it is given, which is a very small percentage of what actually occurs. It is useful for eliminating a car from consideration of purchasing if something bad does show up, but a clean report can be completely meaningless. Same with maintenance history: false negatives are the rule with so few service facilities reporting to them.
I do most of the maintenance and repairs on my vehicles. Think that would show up on a Carfax report?
I live in a city with every dealership is lined up in a strip, and they all report to car fax for maintenance. Maybe I am lucky? I am not saying I donāt inspect the vehicle, but plenty show up where people go 9-10,000 miles between service, and some still come in where the person did services every 3-5k miles, and the dealership also has their records.
Most people donāt go to dealerships for service, and not all dealers work with Carfax.
The worst sludge Iāve seen is short trip winter driving with conventional oil.
And Carfax also reports things in error. According to Carfax my 02 Camry has had 5 title changes when I fact it has had 2. The original title issue when my mother buy the car brand new, and title change when I bought it from her in 2010. And once itās on that garbage report good luck getting it removed.
Carfax works with a quid quo pro system. As a dealer - if you want to get CarFax info on cars, then you must first provide us with your data. They do the same with insurance companies.
Problem is, most dealers donāt have this setup with CarFax, and most people donāt get their vehicles serviced at the dealer. Small independent garages do not have this relationship with CarFax.
As for Insurance - it depends on the state. In some states itās against the law to provide accident information to a third party (aka. CarFax). So all that information about any accidents a car may have had wonāt be reported to CarFax.
The problem with CarFax is whatās NOT reported to them - which is the vast majority of repairs and accidents. NaĆÆve people who get a CarFax report showing a vehicle is clean - when in fact there are serious red-flags that were never reported to CarFax.