5w20....or.....5w30
06-29-2019, 10:25 AM
#31
Senior Member
Toyota is just as bad. They spec 0w16 for North America for some of their engines. Yet is other parts of the world the same engine can use 0w20 to 10w30.
06-29-2019, 10:58 AM
#32
06-29-2019, 11:09 AM
#33
Yep, which is probably why Ford recommends 5w30 for severe duty and in high performance engine. Engines in Europe wear differently which is why they are using higher viscosity oils there. Corvette recently went to 0w40 in all Corvettes, Corvettes for foreign delivery have had 0w40 for years. But that is Chevy, what would they know.
06-29-2019, 11:12 AM
#34
Yep, which is probably why Ford recommends 5w30 for severe duty and in high performance engine. Engines in Europe wear differently which is why they are using higher viscosity oils there. Corvette recently went to 0w40 in all Corvettes, Corvettes for foreign delivery have had 0w40 for years. But that is Chevy, what would they know.
.
06-29-2019, 11:27 AM
#35
I've been building engines for more than 50 years. My latest is a 2.5l Ford going in the Birkin. It will be using 5w30 Mobil 1.
06-29-2019, 11:32 AM
#36
Until that time nothing you say means anything to anyone except yourself.
.
06-29-2019, 12:04 PM
#38
I love these threads. All these folks who know more than the engineers that designed and built the engine.
BTW Ford has been specifying synthetic blend 5W20 oil for a long time now on their NA engines, this isn't something new.
Also like how folks are quick to point out Euro specs call for heavier oil like 0W40 (which they designed their engines to use) and say how crazy Toyota is for specifying 0W16 oil for their new engines. Who here truly believes a VW engine will outlast and be more reliable than a Toyota. My 10 year old Acura with 214,000 miles on it has been using 0W20 oil and getting 10,000 mile oil changes it's entire life and is still running strong. BTW the most reliable full size truck, Toyota Tundra, specifies 0W20 oil for their engines.
Think of your engine like your heart since the oil is the blood of the engine. You heart needs your blood pressure to be within a certain tolerance for it to be healthy; same thing for your engine except it's oil flow rate. If your pressure is to high the Doc will put you on pressure pills which work by opening up your arteries more. If that doesn't work he may also put you an aspirin regimen which thins your blood or actually prescribe blood thinner medication.
Now your engine also has arteries which would be it's oil passages. The engineers have designed these passages to work with a specific viscosity of oil. Thinner oil is going to flow faster and easier than thicker oil and the engine and VTC system is designed for that specific volume for proper lubrication. My uncle's old 1970 something F-100 (or 150 can't remember) oil pressure gauge would stay on "L" for a few seconds after startup before it would start moving slowly to normal. Didn't hurt it since he drove it for 20 years but modern engines have normal oil pressure right at startup because the thinner oil and tight passages flows oil faster.
Modern synthetic blend and synthetic engine oil isn't going to break down with heat and age like conventional dino oil. This is why thinner oil can lubricate and tolerate heat better than the old thicker conventional oil. Aluminum engine blocks dissipate heat better than iron blocks (iron block 6.2 V8 in SD specs 5W30) so oil isn't cooking when shut off in a heat soak. Also, modern VTC systems with their very small passages require oil pressure to work. Our engines also use piston cooling jets which spray oil on the underside of the piston to cool them. Those nozzles are designed to spray the spec viscosity oil and thicker oil is not going to come out well. Engines from the good ole days had no such technology and were engineered to use conventional oil.
But in the end it's your truck do what you want.
BTW Ford has been specifying synthetic blend 5W20 oil for a long time now on their NA engines, this isn't something new.
Also like how folks are quick to point out Euro specs call for heavier oil like 0W40 (which they designed their engines to use) and say how crazy Toyota is for specifying 0W16 oil for their new engines. Who here truly believes a VW engine will outlast and be more reliable than a Toyota. My 10 year old Acura with 214,000 miles on it has been using 0W20 oil and getting 10,000 mile oil changes it's entire life and is still running strong. BTW the most reliable full size truck, Toyota Tundra, specifies 0W20 oil for their engines.
Think of your engine like your heart since the oil is the blood of the engine. You heart needs your blood pressure to be within a certain tolerance for it to be healthy; same thing for your engine except it's oil flow rate. If your pressure is to high the Doc will put you on pressure pills which work by opening up your arteries more. If that doesn't work he may also put you an aspirin regimen which thins your blood or actually prescribe blood thinner medication.
Now your engine also has arteries which would be it's oil passages. The engineers have designed these passages to work with a specific viscosity of oil. Thinner oil is going to flow faster and easier than thicker oil and the engine and VTC system is designed for that specific volume for proper lubrication. My uncle's old 1970 something F-100 (or 150 can't remember) oil pressure gauge would stay on "L" for a few seconds after startup before it would start moving slowly to normal. Didn't hurt it since he drove it for 20 years but modern engines have normal oil pressure right at startup because the thinner oil and tight passages flows oil faster.
Modern synthetic blend and synthetic engine oil isn't going to break down with heat and age like conventional dino oil. This is why thinner oil can lubricate and tolerate heat better than the old thicker conventional oil. Aluminum engine blocks dissipate heat better than iron blocks (iron block 6.2 V8 in SD specs 5W30) so oil isn't cooking when shut off in a heat soak. Also, modern VTC systems with their very small passages require oil pressure to work. Our engines also use piston cooling jets which spray oil on the underside of the piston to cool them. Those nozzles are designed to spray the spec viscosity oil and thicker oil is not going to come out well. Engines from the good ole days had no such technology and were engineered to use conventional oil.
But in the end it's your truck do what you want.
06-29-2019, 12:13 PM
#39
I love these threads. All these folks who know more than the engineers that designed and built the engine.
BTW Ford has been specifying synthetic blend 5W20 oil for a long time now on their NA engines, this isn't something new.
Also like how folks are quick to point out Euro specs call for heavier oil like 0W40 (which they designed their engines to use) and say how crazy Toyota is for specifying 0W16 oil for their new engines. Who here truly believes a VW engine will outlast and be more reliable than a Toyota. My 10 year old Acura with 214,000 miles on it has been using 0W20 oil and getting 10,000 mile oil changes it's entire life and is still running strong. BTW the most reliable full size truck, Toyota Tundra, specifies 0W20 oil for their engines.
Think of your engine like your heart since the oil is the blood of the engine. You heart needs your blood pressure to be within a certain tolerance for it to be healthy; same thing for your engine except it's oil flow rate. If your pressure is to high the Doc will put you on pressure pills which work by opening up your arteries more. If that doesn't work he may also put you an aspirin regimen which thins your blood or actually prescribe blood thinner medication.
Now your engine also has arteries which would be it's oil passages. The engineers have designed these passages to work with a specific viscosity of oil. Thinner oil is going to flow faster and easier than thicker oil and the engine and VTC system is designed for that specific volume for proper lubrication. My uncle's old 1970 something F-100 (or 150 can't remember) oil pressure gauge would stay on "L" for a few seconds after startup before it would start moving slowly to normal. Didn't hurt it since he drove it for 20 years but modern engines have normal oil pressure right at startup because the thinner oil and tight passages flows oil faster.
Modern synthetic blend and synthetic engine oil isn't going to break down with heat and age like conventional dino oil. This is why thinner oil can lubricate and tolerate heat better than the old thicker conventional oil. Aluminum engine blocks dissipate heat better than iron blocks (iron block 6.2 V8 in SD specs 5W30) so oil isn't cooking when shut off in a heat soak. Also, modern VTC systems with their very small passages require oil pressure to work. Our engines also use piston cooling jets which spray oil on the underside of the piston to cool them. Those nozzles are designed to spray the spec viscosity oil and thicker oil is not going to come out well. Engines from the good ole days had no such technology and were engineered to use conventional oil.
But in the end it's your truck do what you want.
BTW Ford has been specifying synthetic blend 5W20 oil for a long time now on their NA engines, this isn't something new.
Also like how folks are quick to point out Euro specs call for heavier oil like 0W40 (which they designed their engines to use) and say how crazy Toyota is for specifying 0W16 oil for their new engines. Who here truly believes a VW engine will outlast and be more reliable than a Toyota. My 10 year old Acura with 214,000 miles on it has been using 0W20 oil and getting 10,000 mile oil changes it's entire life and is still running strong. BTW the most reliable full size truck, Toyota Tundra, specifies 0W20 oil for their engines.
Think of your engine like your heart since the oil is the blood of the engine. You heart needs your blood pressure to be within a certain tolerance for it to be healthy; same thing for your engine except it's oil flow rate. If your pressure is to high the Doc will put you on pressure pills which work by opening up your arteries more. If that doesn't work he may also put you an aspirin regimen which thins your blood or actually prescribe blood thinner medication.
Now your engine also has arteries which would be it's oil passages. The engineers have designed these passages to work with a specific viscosity of oil. Thinner oil is going to flow faster and easier than thicker oil and the engine and VTC system is designed for that specific volume for proper lubrication. My uncle's old 1970 something F-100 (or 150 can't remember) oil pressure gauge would stay on "L" for a few seconds after startup before it would start moving slowly to normal. Didn't hurt it since he drove it for 20 years but modern engines have normal oil pressure right at startup because the thinner oil and tight passages flows oil faster.
Modern synthetic blend and synthetic engine oil isn't going to break down with heat and age like conventional dino oil. This is why thinner oil can lubricate and tolerate heat better than the old thicker conventional oil. Aluminum engine blocks dissipate heat better than iron blocks (iron block 6.2 V8 in SD specs 5W30) so oil isn't cooking when shut off in a heat soak. Also, modern VTC systems with their very small passages require oil pressure to work. Our engines also use piston cooling jets which spray oil on the underside of the piston to cool them. Those nozzles are designed to spray the spec viscosity oil and thicker oil is not going to come out well. Engines from the good ole days had no such technology and were engineered to use conventional oil.
But in the end it's your truck do what you want.
Last edited by juanvaldez; 06-29-2019 at 12:25 PM.
The following users liked this post:
szym (06-29-2019)
06-29-2019, 12:22 PM
#40
lol