Engine What engine oil are you running in your foxbody?

[nickyb]

I bet you there is only two maybe three oil refineries that just add each brands "special recipe" addatives , so they all work just as good.
It's all just preference. To each his own.

 

[ustacould]

This is an age old debate, but an oil change is still the cheapest thing we do for our hot rods so do it early and often.
And I don't sell oil or anything else...

 

[limp]

This is an age old debate, but an oil change is still the cheapest thing we do for our hot rods so do it early and often.
And I don't sell oil or anything else...

I actually saw this on a Diesel site the other day although they added " change fuel filters often" onto the clean oil and filter change........

 

[Potomus Pete]

I use the STP goo..I think the 302 likes it.

 

[General karthief]

I use the STP goo..I think the 302 likes it.

You use STP goo for what?

 

[Potomus Pete]

Oil addative. Surely you know STP. Remember the stickers back in the day. What ever happened to stickers in advertising automotive products. Money. The best were the Budman stickers

 

[General karthief]

Oil addative. Surely you know STP. Remember the stickers back in the day. What ever happened to stickers in advertising automotive products. Money. The best were the Budman stickers

STP has not changed, oil has.

 

[Ethereal_Zer0]

I use the STP goo..I think the 302 likes it.

I chucked some Lucas in my car a couple of weeks ago and it did wonders. Prob gonna keep doing that in the future.

 

[Mindseye007]

I chucked some Lucas in my car a couple of weeks ago and it did wonders. Prob gonna keep doing that in the future.

I have used Lucas, Slick50, Duralube, and sea foam. Sea foam I added a whole can in the gas tank and to the crankcase, drove my last 1000km before the 5000km mark and changed the oil and it is awesome stuff, I had a sticky lifter and it fixed it .

 

[limp]

We took care of a used car lots cars at the service station ( part time High School job) I worked at in the early 70's.. They would have us inspect the cars they took in and we did an oil/filter change on all of them.. The car lot owner specified 4 qts oil, 1 qt ATF... ( About $5 bucks back then)..
Amazing how the lifters and the engine overall quieted down.....
Simpler times....

 

[mikestang63]

Rotella 15w 40 in my supercharged foxes
Mobil 10w 30 in my NA foxbody

FL1A filters in all of them

 

[TIGGER]

I have been using Mobil 1 in pretty much all my cars and trucks since I bought Tigger in 99. Prior to that, it was whatever was the cheapest name brand conventional oil. My mom's 94 Escort GT is the only car that we have owned that I have used synthetic in since it was new, well since the engine was broke in. I used valvoline synthenic then but it seemed to cause a lot of varnish in the engine. And then around 99 I switched to Mobile 1. The head cracked at ~105K so it came off and I was happy with the very little to no wear in the cylinders.

 

[Mindseye007]

Just changed my oil from 10W30 to 5W30 Mobil 1 Extended Performance oil comes in a 5 quart bottle with the ford FL1 oil filter and she runs smooth like butter and purrs like a kitten

Mobil 1™ Extended Performance oils are advanced full synthetic motor oils designed to help deliver outstanding engine protection to protect critical engine parts for up to 25,000 kilometers between oil changes*. Mobil 1 Extended Performance oils meet or exceed the industry's toughest standards and are especially formulated to protect during longer oil change intervals. Mobil 1™ synthetic motor oil technology comes as standard equipment in many different vehicles, including select high-performance vehicles.​

Features and Benefits​

Mobil 1™ Extended Performance motor oils are made with a proprietary blend of high performance synthetic base stocks fortified with a precisely balanced additive system to meet or exceed industry's toughest performance standards. Mobil 1 Extended Performance motor oils are designed to provide outstanding levels of engine protection, even during longer oil change intervals.

Key features and potential benefits include:

Features	Advantages and Potential Benefits
Advanced full synthetic formula	Exceptional overall engine protection
Precise balance of performance additives	Outstanding wear protection
Outstanding thermal and oxidation stability	Protects for up to 25,000 kilometers between oil changes*
Active cleaning agents	Can clean up sludge left behind in your engine
Excellent low temperature capabilities	Quick cold weather starting down to -40°C for fast protection and extended engine life

 

[General karthief]

Just changed my oil from 10W30 to 5W30 Mobil 1 Extended Performance oil comes in a 5 quart bottle with the ford FL1 oil filter and she runs smooth like butter and purrs like a kitten

Mobil 1™ Extended Performance oils are advanced full synthetic motor oils designed to help deliver outstanding engine protection to protect critical engine parts for up to 25,000 kilometers between oil changes*. Mobil 1 Extended Performance oils meet or exceed the industry's toughest standards and are especially formulated to protect during longer oil change intervals. Mobil 1™ synthetic motor oil technology comes as standard equipment in many different vehicles, including select high-performance vehicles.​

Features and Benefits​

Mobil 1™ Extended Performance motor oils are made with a proprietary blend of high performance synthetic base stocks fortified with a precisely balanced additive system to meet or exceed industry's toughest performance standards. Mobil 1 Extended Performance motor oils are designed to provide outstanding levels of engine protection, even during longer oil change intervals.

Key features and potential benefits include:

Features	Advantages and Potential Benefits
Advanced full synthetic formula	Exceptional overall engine protection
Precise balance of performance additives	Outstanding wear protection
Outstanding thermal and oxidation stability	Protects for up to 25,000 kilometers between oil changes*
Active cleaning agents	Can clean up sludge left behind in your engine
Excellent low temperature capabilities	Quick cold weather starting down to -40°C for fast protection and extended engine life

Pretty much all the major brands say the same or similar things.

 

[Potomus Pete]

How many miles on it?? First time with synthetic?? I wonder if it will leak.

 

[91AOD5.0LX]

How many miles on it?? First time with synthetic?? I wonder if it will leak.

I always use Motorcraft synthetic blend but for no real reason decided to try full synthetic for my last oil change in April. It leaked. Not bad, just a few drops every few days compared to zero drops prior.
I switched back to the synthetic blend and all is fine again.
That was my experience with full synthetic oil.

 

[limp]

I always use Motorcraft synthetic blend but for no real reason decided to try full synthetic for my last oil change in April. It leaked. Not bad, just a few drops every few days compared to zero drops prior.
I switched back to the synthetic blend and all is fine again.
That was my experience with full synthetic oil.

I have heard stores like this but never encountered a problem with full syn my self in any of my vehicles...
My understanding of full syn is its ability to withstand more heat without breaking down.. I use full syn in all of my air cooled engines. Lawmower, generators, and my Harley...

 

[Potomus Pete]

I put synthetic in my cheap lawnmower and the motor blew soon after. i think it was the oil but who knows the rings just failed quick. Quick edit...I was just thinking about my neice. She took her Hyundai to a quick change place with 178K miles on it. The kid talked her into full synthetic after years of conventional. Now the motor eats oil at a quart every one/two weeks. She doesnt have the money for another car so I am putting oil in all the time because of this kid

 

[Bullitt347]

The 3.0L Duramax Diesel in the Silverado 1/2 ton pickups call for 0-20w.
Sure, it is "formulated" for Diesel, but the idea of 0-20w in a Diesel is just weird.
I guess they are chasing that last 1/10 of a mpg.
Kind of like Toyota and their 0-16w.
When I had my SBF race engine built I asked the Machine Shop what oil they recommend for it considering it would be S/C and make of 1K power spinning 8K. rpm
They said 20-50w semi synthetic.
I was surprised. I said "isn't that kind of thick?"
The Machinist said "how thick do you think that oil is at 200+ degrees F?"
Valid point. I have been using it ever since with zero complaints.

 

[limp]

They said 20-50w semi synthetic.
I was surprised. I said "isn't that kind of thick?"
The Machinist said "how thick do you think that oil is at 200+ degrees F?"
Valid point. I have been using it ever since with zero complaints.

I watched a guy add 10-40 to his vehicle in Alaska when it was below 0 farenheit.... I was surprised at how thick it was... Way thicker than I would want in my cold engine...... Most multi weight oils all seem to flow well when its warm, except for 20-50 it always seems a bit thick, but again I was surprised at the 10-40 at very cold temps....