Why is using HPL for short drain intervals a waste?

[camrydriver111]

When the topic of HPL comes up a lot of people say you must run long drain intervals to get good value.

Why is this the case?

You are getting the best oil in the world, that protects under all conditions. Of course there will be a price premium for that.

Even when you run short OCIs it will protect better than a non-boutique oil.

 

[gogydm]

Yes, but if you run it for longer you don't have to spend so much money on oil. It will protect for longer, so why get rid of it sooner?

 

[buster]

When the topic of HPL comes up a lot of people say you must run long drain intervals to get good value.

Why is this the case?

You are getting the best oil in the world, that protects under all conditions. Of course there will be a price premium for that.

Even when you run short OCIs it will protect better than a non-boutique oil.

Really is no such thing as best oil in the world.
You won't necessarily get better protection as an engine's B10 rating is not likely to change despite the oil brand.

The differences are only noticed when the oil is subjected to extreme situations. For example - generic off the shelf 5w30 in engine A for 3k miles and HPL in engine A for 3k miles you'd like never see a difference other than maybe cleanliness, but even that is questionable if the drain interval is only 3k miles.

 

[JoelB]

I think the point is that in normal driving conditions it really won't protect better in short intervals. Not noticeably so.

 

[cptbarkey]

Even when you run short OCIs it will protect better than a non-boutique oil.

Really?

 

[camrydriver111]

Really?

Of course, the major oil brands make good products, but it is designed to meet a certain price point.

 

[buster]

Of course, the major oil brands make good products, but it is designed to meet a certain price point.

you're missing quite a bit.

You're forgetting that the major brands also make top tier oils that far EXCEED the toughest industry standard tests and have the resources to test them out.

 

[BHopkins]

For me, it is the overwhelming evidence that, when short oil change intervals are used, any quality motor oil will protect an engine well beyond the mileage that most of us are interested in keeping a car.

Irv Gordon, who drove his '60 Volvo over 3,000,000 miles, exclusively used Castrol GTX from the time it was introduced in 1968, and before that he used earlier Castrol motor oil types. I recall reading about a lady up in Vancouver area that drove her Tacoma over 1,000,000 miles. All oil changes were done at the local Toyota dealership, using bulk Pennzoil conventional.

I've done a lot of research on cars and trucks that make the 1,000,000 mile club. Many of them have adhered to a 3k - 5k mile oci. But in almost every case where the oil type has been stated, they were all common brands, such as Valvoline, Pennzoil, Castrol, and Mobil.

I haven't seen any evidence that a premium motor oil is required to protect an engine well enough to go the distance, when following a short oci. I'd love to see it, if someone can provide evidence otherwise.

 

[buster]

^THIS

And it also goes hand in hand with an engines B10 rating. You're not going to change that much if at all.

 

[Glenda W.]

I’d like to think 10k mile oci’s for HPL is like 3k for OTS oils. Another benefit would be keeping those pistons and rings clean in oil burners. 5k oci’s didn’t help me.

 

[Hermann]

I’d like to think 10k mile oci’s for HPL is like 3k for OTS oils. Another benefit would be keeping those pistons and rings clean in oil burners.

It's good but that's stretching it a bit IMO

 

[The Critic]

I think the point is that in normal driving conditions it really won't protect better in short intervals. Not noticeably so.

Not entirely correct. HPL has demonstrated incredible solvency compared to most brands and has the ability to "deep clean" engines.

 

[Glenda W.]

It's good but that's stretching it a bit IMO

I mean HPL should be able to at least double a majority group 3 oci. Of course a severe fuel dilutor may prohibit a longer run.

 

[buster]

A lot of approved oils keep rings very clean. If you're passing the IIIH testing by 20x-50x you're in good shape.

 

[hemioiler]

When the topic of HPL comes up a lot of people say you must run long drain intervals to get good value.

Why is this the case?

You are getting the best oil in the world, that protects under all conditions. Of course there will be a price premium for that.

Even when you run short OCIs it will protect better than a non-boutique oil.

Throwing it out early, despite whether its a better oil or not vs other options, still means you are wasting money because HPL is a long interval oil and you're not getting the full value out of it by changing early.

But I do it anyway. I'm not taking chances with a hemi, my OCI's are about 5000 to 7000 miles which includes a fair amount of towing. Blackstone always says I could go much longer.

 

[Glenda W.]

A lot of approved oils keep rings very clean. If you're passing the IIIH testing by 20x-50x you're in good shape.

Now we’re talking Amsoil SS numbers.

I’m sure HPL would too.

 

[buster]

Now we’re talking Amsoil SS numbers.

Mobil 1 claims 20x and Castrol is now advertising industry leading 50x which is quite remarkable.

Amsoil did a double length and crushed it. Amsoil also has incredible solvency.

If you don't have data you're just guessing.

 

[buster]

I’m sure HPL would too.

You don't know until you run it. It's not just about piston deposits too. It's about the SA levels and also viscosity control.

 

[Urshurak776]

To me, it's a great oil for a long OCI. Not sure how much value there is to running it 3K or something. Certainly won't hurt anything (except your wallet.)

To me that would be like buying the roll of premium high end, expensive paper towels, but only using 3 pieces then chucking it in trash.

 

[Glenda W.]

Mobil 1 claims 20x and Castrol is now advertising industry leading 50x which is quite remarkable.

Amsoil did a double length and crushed it. Amsoil also has incredible solvency.

If you don't have data you're just guessing.

I’ve seen the Amsoil data and watched their torture tests. No doubt HPL would crush it too. I’ve used a lot of Mobil 1 and it didn’t help me. Haven’t used Castrol in many years.