Yikes all 5 oil changes have been synthetic blend???? Should I freak out or chill

[BlueOval1954]

Full syn will make your engine last longer right ?

Sit right there and listen to me Op

2008 2.7 Ltr 4 cylinder Tacoma.
Only mod was a 11,500 btu transmission intercooler.
Heavy Central Florida commercial use.
50/50 mix of heavy city traffic and Intersate.
average cargo load In the bed was 800 pounds.
For 150,000 miles I pulled an iridium trailer,
Medical stuff.
It was a 5x8 enclosed trailer. Cargo and trailer weighed 2,100 pounds.

528,000 trouble free miles on Mobil 1 full syn @ 10,000 mile service intervals.
At 528,000 compression was dropping. It was done, finito.

STAY WITH ME !
A co worker, same truck, same year, same work only a five speed manual.

At 530,000 miles, just to get more miles than me, hahaha.
His compression was still good. His engine was still making more power. At 530,000 miles.
He traded it in on a new one still running well.
His Oil discipline, At 10,000 mile intervals.
He got the good stuff I tell ya!!

Always had jiffy lube do his oil changes. They used the Cheap Quaker State in the fifty five gallon barrel, over head.
It was NOT Full synthetic !
It was Roach oil.
Digest that and go for a ride then
Fagetaboutit.

OK, I'll Fagetaboutit

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[MakinDoForNow]

Full syn will make your engine last longer right ?

Sit right there and listen to me Op

2008 2.7 Ltr 4 cylinder Tacoma.
Only mod was a 11,500 btu transmission intercooler.
Heavy Central Florida commercial use.
50/50 mix of heavy city traffic and Intersate.
average cargo load In the bed was 800 pounds.
For 150,000 miles I pulled an iridium trailer,
Medical stuff.
It was a 5x8 enclosed trailer. Cargo and trailer weighed 2,100 pounds.

528,000 trouble free miles on Mobil 1 full syn @ 10,000 mile service intervals.
At 528,000 compression was dropping. It was done, finito.

STAY WITH ME !
A co worker, same truck, same year, same work only a five speed manual.

At 530,000 miles, just to get more miles than me, hahaha.
His compression was still good. His engine was still making more power. At 530,000 miles.
He traded it in on a new one still running well.
His Oil discipline, At 10,000 mile intervals.
He got the good stuff I tell ya!!

Always had jiffy lube do his oil changes. They used the Cheap Quaker State in the fifty five gallon barrel, over head.
It was NOT Full synthetic !
It was Roach oil.
Digest that and go for a ride then
Fagetaboutit.

Aaarrrggg!!! Matey!!! It's not so much the oil as the DRIVER???

 

[Cherokee]

Post #137
TRUTH !

 

[Timothyd]

25 years ago, we switched to full synthetic on the company fleet of 40 vehicles. Records showed no advantage to synthetic oil. I had a 99 F150 with a 4.6 and as far as I know it never had blend or full synthetic in it. It had 240k on it when I sold it. My wife had a 2015 Escape with a 2.0 EB, it came from factory with blend in it. Hail totaled it due to cosmetic dents we bought it from insurance, our son wanted it. It had 108k on it and he has been driving it for 2 yrs without any issues. He may have switched to full syn.??? It is my opinion that operating with no oil or low oil will cause damage. Other than that, what oil you use is your choice, your preference.

Do the dents give him better mileage, like on a golf ball?

 

[BlueOval1954]

Everyone has their own opinion and they need to do what they think is best. No crabbin, just do it.

 

[surfstar]

Just order online or go to Walmart or Costco and buy the right oil and filter. Bring to a shop. $20-30 for labor and they'll rotate the tires too.

Full syn oil change for $70ish.
And that is using the correct spec oil b/c you bought it yourself.

 

[jonshep]

Do the dents give him better mileage, like on a golf ball?

It has not rolled into a hole yet. The water pump failed recently and it got hot. Replaced water pump but now it's smoking. He thinks it is the cylinder 2/3 head gasket failure. It has 140k on it so it may get traded or salvaged, but for sure his Mom and I are not refunding any money it...since we gave him the Escape.

 

[MavStangVa]

2023 hybrid xl and I have 25k on the truck. I have been changing my oil at the dealer every time at 5k intervals. I guess there was a communication mix up which has me in this situation. My dealer offers a package called " The Works " which is a tire rotation and oil change for $119......originally it was $99 but keeps going up.......they have coupons for $99 all the time. As part of the service they also do the bs fluid check blah blah blah to add value to " The Works " package. The problem is that our trucks run of full synthetic and the dealer has been filling my truck with synthetic blend. I mistakenly assumed that if I was having work done at the dealer that they would put the correct oil in......or that if I requested a package that wasnt right for my truck that they would advise against it. Anyway for this last oil change that I did I read the fine print to discover that it said synthetic blend....vs full synthetic. Now I realize the dealer will just say....well....you requested " The Works " package so thats what we filled the car with. I realize that oil and tire threads can get way out of control but I really just want some opinions to see if this is an issue or not. On the plus side I do 5K oil change intervals and I drive like a grampa. Should I now switch over to full synthetic from now on? I believe I will for sure.

I understand going to the dealership. I just traded my 203 Silverado for a 2024 Maverick. I moved to a nearby town and was 1 mile from the dealership where I bought the Chevy. So I thought "why not go there for an oil change, state inspection ( that costs $20), and rotation. Well 3 hours later at a cost of 124.00 plus the inspection charge which they failed it because of worn wiper blades I paid and walked out. The dealer wanted $205 for 2 blades, I went to Walmart bought them and returned for the re-inspection. Since then I went back to the NAPA service center in my former town about 12 miles away and paid $64 for oil change and tire rotation. I will go to the dealer for the FREE first oil change but not after.

 

[MavStangVa]

Just order online or go to Walmart or Costco and buy the right oil and filter. Bring to a shop. $20-30 for labor and they'll rotate the tires too.

Full syn oil change for $70ish.
And that is using the correct spec oil b/c you bought it yourself.

I do not know of any service places near me that will do an oil change with YOUR supplied oil and filter. But NAPA service centers are usually cheaper than dealers. I quit doing it myself when I had trouble disposing of the used oil. If I put an oil filter or oil in the garbage and they see it they will ban me from collection and face a state fine.

 

[Mike1597]

https://www.fordservicecontent.com/...Maverick_Owners_Manual_version_1_om_EN-US.pdf

The 2025 owner's manual states the following... No mention of synthetic oil. Oil just needs to meet Ford specs WSS-M2C962-A1 and viscosity SAE 0W-20 Motor Oil

 

[Ranch]

The 2025 owner's manual states the following... No mention of synthetic oil. Oil just needs to meet Ford specs WSS-M2C962-A1 and viscosity SAE 0W-20 Motor Oil

Looks like people can use what ever 0W-20 that they want.

What does the "QFS" stand for under the (U.S) materials? Maybe "quart full synthetic"?

 

[Mike1597]

Looks like people can use what ever 0W-20 that they want.

What does the "QFS" stand for under the (U.S) materials? Maybe "quart full synthetic"?

QFS stands for Full Synthetic in Ford engine oil specifications. It is used for synthetic blend or full synthetic engines.

 

[MavStangVa]

Looks like people can use what ever 0W-20 that they want.

What does the "QFS" stand for under the (U.S) materials? Maybe "quart full synthetic"?

" In the context of motor oil, QFS doesn't stand for a widely recognized industry standard or abbreviation. It's more likely a specific product designation or brand name, often indicating a type of synthetic motor oil or a specific grade within a product line. For example, Qualube Qualsyn MS FS 5W-30 VAG is a specific oil designed for Volkswagen/Audi vehicles, and "FS" likely refers to a fully synthetic grade. In Ford motor oil designations, QFS typically stands for Qualified For Service or a similar term related to Ford's oil quality and performance standards. It indicates that the oil has been tested and approved by Ford to meet specific requirements for engine protection and longevity, according to Amazon.com. For example, Ford Motorcraft's website uses "QFS" to indicate that the oil meets the specified viscosity and quality requirements for Ford engines. "

 

[MavStangVa]

QFS stands for Full Synthetic in Ford engine oil specifications. It is used for synthetic blend or full synthetic engines.

In Ford motor oil designations, QFS typically stands for Qualified For Service or a similar term related to Ford's oil quality and performance standards. It indicates that the oil has been tested and approved by Ford to meet specific requirements for engine protection and longevity, according to Amazon.com. For example, Ford Motorcraft's website uses "QFS" to indicate that the oil meets the specified viscosity and quality requirements for Ford engines.

 

[Ranch]

" In the context of motor oil, QFS doesn't stand for a widely recognized industry standard or abbreviation. It's more likely a specific product designation or brand name, often indicating a type of synthetic motor oil or a specific grade within a product line. For example, Qualube Qualsyn MS FS 5W-30 VAG is a specific oil designed for Volkswagen/Audi vehicles, and "FS" likely refers to a fully synthetic grade. In Ford motor oil designations, QFS typically stands for Qualified For Service or a similar term related to Ford's oil quality and performance standards. It indicates that the oil has been tested and approved by Ford to meet specific requirements for engine protection and longevity, according to Amazon.com. For example, Ford Motorcraft's website uses "QFS" to indicate that the oil meets the specified viscosity and quality requirements for Ford engines. "

It's actually a portion of the Motorcraft part number that designates it being full synthetic vs synthetic blend.

So you're correct that it has nothing to to do with an industry standard or abbreviation

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