Why cant I buy......

[adsm08]

The grip comment was sarcasm. The rest was a real question. Thanks for answering in detail and pics.

I didn't catch the sarcasm on that one, because many years ago when I was a dumb kid, that believed more money meant better product, and had no wrist strength I bought K&N filters just for the nut on the end.

 

[Ranger850]

I own three types of oil filter wrenches. The pliers type, the hose clamp looking one and a strap style. And still have stabbed them with a flathead (least effective) to get it to move just a little.

 

[19Walt93]

Multigrade oil actually behaves backwards of what was stated above, 5w30 for example gets no thicker than 5 weight when cold, nor thinner than 30 when hot. 10w30 and 5w30 differ only in how well they'll pump when cold. Ford started using 5w30 in about 1976 because they downsized the battery cables a little and 2.3 Pintos and Mustangs barely cranked in subzero weather, 5w30 fixed it. One of my friends likes to use 10w40 in his 4.6 F150 and doesn't understand why his recently replaced cam phasers are making noise again. I suggested he try using 5w30 if he can't be comfortable with 5w20 like the oil cap says.

 

[8thTon]

Multigrade oil actually behaves backwards of what was stated above, 5w30 for example gets no thicker than 5 weight when cold, nor thinner than 30 when hot. 10w30 and 5w30 differ only in how well they'll pump when cold.

Yes, exactly. Some seem to think it actually gets thicker when it gets warm.

 

[rusty ol ranger]

It suppose it could have been. I'd think if the filter was the root cause it should have shown up much sooner than 2000 miles.

My dad's 351W did something very similar, except it would dip on take-off and at low RPM, and then come up with engine speed, and then it spun a thrust bearing while we were towing a Jetta.

Thats what i thought to, untill the filter started getting fuller and dropped to much capacity. If that makes sense.

 

[Dirtman]

The prefix number is not a weight, its a aspect/index ratio. A 5w30 does not have less viscosity than SAE30 when cold. It does have lower viscosity than 10w30 when cold. Both will get thinner (to 30) as they warm. If you freeze to 0w20 and 5w20 to 0c the 0w will flow faster but neither will be thinner than when you warm them both up to 100c. At that 100c you have the same oil. Oil is not magic and obeys the laws of physics it is never thinner when cold even though the first number is lower.

dont believe me... Im sure you own a freezer...

 

[85_Ranger4x4]

The prefix number is not a weight, its a aspect/index ratio. A 5w30 does not have less viscosity than SAE30 when cold. It does have lower viscosity than 10w30 when cold. Both will get thinner (to 30) as they warm. If you freeze to 0w20 and 5w20 to 0c the 0w will flow faster but neither will be thinner than when you warm them both up to 100c. At that 100c you have the same oil. Oil is not magic and obeys the laws of physics it is never thinner when cold even though the first number is lower.

dont believe me... Im sure you own a freezer...

I did a science project on it in middle school. As of the late 90's Castrol GTX flowed the best when kept in my parent's deep freeze. I sampled half a dozenish brands of 10W-30, even in the same grade there was quite a bit of variance.

 

[Dirtman]

Obviously brand by brand is different. But my point is simply that a 5w30 is not thinner when frozen than when hot. The first number is for cold temp rating but its not 10 weight cold and 30 weight warm. The first number is an index not weight.

We get -25 temps here in the winter and the best flowing oil ive found for that is penzoil ultra platinum. The worst ive seen is ironically enough, regular penzoil followed by royal purple.

 

[85_Ranger4x4]

Obviously brand by brand is different. But my point is simply that a 5w30 is not thinner when frozen than when hot. The first number is for cold temp rating but its not 10 weight cold and 30 weight warm. The first number is an index not weight.

I know, it was amusing though how much variance there was.

 

[Bird76Mojo]

For those that can use it, Walmart has these on sale. I saw them yesterday. Hell, at that price a guy could use it in any old equipment he's got laying around.

 

[85_Ranger4x4]

For those that can use it, Walmart has these on sale. I saw them yesterday. Hell, at that price a guy could use it in any old equipment he's got laying around.

View attachment 25894

Bummer, it is too thin for my old stuff and too pricey for chain lube.

 

[adsm08]

Bummer its not 5W-40.

I think I'm going to try that in the Ranger next oil change and see if it brings my idle pressure up any.

 

[fastpakr]

Bummer its not 5W-40.

I think I'm going to try that in the Ranger next oil change and see if it brings my idle pressure up any.

I've been running T6 5w40 in everything that allows it for years now because it's a decent synth and frequently on sale for $12-15 a gallon.

 

[adsm08]

I've been running T6 5w40 in everything that allows it for years now because it's a decent synth and frequently on sale for $12-15 a gallon.

That's true. I never thought about that. PenzPlat is the only commonly available gas 5W-40 that I have found.

 

[fastpakr]

To be fair, I haven't had to stock up on it recently. The last few years I tend to buy it about five gallons at a time online when Rotella offers rebates. In the past it was available at all the chain auto stores as well as Walmart. Conveniently it's also very comfortable with a wet clutch, so my motorcycles get it as well (when they're running, that is - it's been a while unfortunately).