I know that I've been using Chevron high mileage in my 96 Cherokee for a year now, and the UOA looked very good, there were no leaks before, there are still no leaks. The base oil is thicker than the regular oil, and my engine likes it.
Will not use High Mileage fluids
- Thread starter kanling
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kanling: Maybe the word condition is a bad word to use. Let's just say the esters keep the seals in the condition they were when they were new. Over time seals become hard and shrink. The esters just help them to stay soft and plyable. As for as HM oils with esters, this is what I know.
Pennzoil, Quaker State, Shell, Mobil, Castrol, Chevron, Texaco, and Valvoline. Do not know about the rest.
Pennzoil, Quaker State, Shell, Mobil, Castrol, Chevron, Texaco, and Valvoline. Do not know about the rest.
So you have no concerns with those brands even if switching periodically between high mileage oils and standard products?
"chemical interaction"
Why couldn't it be a physical interaction?
Why couldn't it be a physical interaction?
Interesting. Any idea how much ester would be in these oils?
I have no concerns with these brands at all.
The percentage of ester would be somewhere between 3% & 7%. Just a small amount is needed.
The percentage of ester would be somewhere between 3% & 7%. Just a small amount is needed.
Triple_Se7en
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High mileage oils are better than standard dinos when you include all aspects of your used, high mileage engine.
I like TallPauls armorall comparison and also Johnnys explanation. It makes sense to me that these oils are trying to make older, possibly dried out seals more like they were when they were new. I would have no problem using them in a higher mileage car however if I started using them I would stick with them or at least use them every 3rd oil change so that the seals stayed
rejuvenated.
rejuvenated.
This has been an interesting thread. I am wondering if Ester is used as the Seal conditioner if it adds advantages int the FM/EP area as well as increasing the sioolvency of the base oil.
This weekend I am draining the Maxlife syn and installing either more Maxlife Syn or Some Mobil 1 0w30. This oil is going to immediately go on a 1500 mile drive to Virginia where it will spend the winter in the vehicle where temps can get down near 0°f in the winter.
It really should be an easier decision to make .
This weekend I am draining the Maxlife syn and installing either more Maxlife Syn or Some Mobil 1 0w30. This oil is going to immediately go on a 1500 mile drive to Virginia where it will spend the winter in the vehicle where temps can get down near 0°f in the winter.
It really should be an easier decision to make .
Esters can lower PP and provide EP functions. That makes more "room" in the add pack for DD, FM and AW.
I'd like to bring up a possibility that no one's raised in this thread. I've read, or heard on TV motor vehicle shows, more than once that the reason that some seals leak or disintegrate when synthetic oil is used is what the seals are made of and specifically, what the seals in the older vehicles were made of. And that the seals in the newer vehicles are now, because of the ever-increasing popularity of synthetic oil, made of a material that the synthetic oil cannot leak past or disintegrate. Anyone else heard or read this?
I have a 96 Honda Prelude with 91,000 miles. I purchased the car 7 months ago, and have put about 2,000 miles on it.
I have changed the oil twice since buying the car, and both times I used Valvoline Max-Life non-synthetic.
After reading this post, I started getting kind of worried. I never had a leak before, and I still don't have one after switching to Mal-Life oil (knock on wood). Should I stick with the Max-Life or switch back to regular dino?
Thanks,
Del
I have changed the oil twice since buying the car, and both times I used Valvoline Max-Life non-synthetic.
After reading this post, I started getting kind of worried. I never had a leak before, and I still don't have one after switching to Mal-Life oil (knock on wood). Should I stick with the Max-Life or switch back to regular dino?
Thanks,
Del
ALL oils pass a seal compatibility test.
I think you guys are looking way to hard at these oils.
Lets go back a couple of years. I imagine the folks at Valvoline were looking for a way to increase oil sales. They needed to come up with a better oil and market it to the public. They had a better oil in dura-blend (staying out of the synthetic price range). Problem was everybody else had a blend. The guy using pennzoil, quaker state, halvoline, mobil, castrol, had no reason to switch to a valvoline product, they would just move up the product line that they using.
Valvoline had to give them a reason to switch. The solution was to market this new oil for older engines. They could have released a new dura-blend and stated all the advantages of max-life with that oil for all milage cars, but it would not have taken off. By directing this oil to older engines thay created a product that people had to have. The other manufacturers got caught with there pants down, and had to release there own versions to keep there current customers.
Does anybody think that Mobil's truck and SUV oil will harm a car, or that penzoils truck and 4x4 blend will hurt a car. How about if you put quaker state 4x4 (blend)oil in a high horsepower car and put quaker state high horsepower blend into a 4x4, will something bad happen.
I would use this oil without any hesitation in a new car (even easier when I can get it free or for 1$/quart mail-in rebate). I also would have no problems taking a multivitamin marketed to "seniors" (I am 34).
Lets go back a couple of years. I imagine the folks at Valvoline were looking for a way to increase oil sales. They needed to come up with a better oil and market it to the public. They had a better oil in dura-blend (staying out of the synthetic price range). Problem was everybody else had a blend. The guy using pennzoil, quaker state, halvoline, mobil, castrol, had no reason to switch to a valvoline product, they would just move up the product line that they using.
Valvoline had to give them a reason to switch. The solution was to market this new oil for older engines. They could have released a new dura-blend and stated all the advantages of max-life with that oil for all milage cars, but it would not have taken off. By directing this oil to older engines thay created a product that people had to have. The other manufacturers got caught with there pants down, and had to release there own versions to keep there current customers.
Does anybody think that Mobil's truck and SUV oil will harm a car, or that penzoils truck and 4x4 blend will hurt a car. How about if you put quaker state 4x4 (blend)oil in a high horsepower car and put quaker state high horsepower blend into a 4x4, will something bad happen.
I would use this oil without any hesitation in a new car (even easier when I can get it free or for 1$/quart mail-in rebate). I also would have no problems taking a multivitamin marketed to "seniors" (I am 34).
My buddy at work has a susuki sameri that 4x4 that has almost 800K on it and he started using pennzoil high milage and it reduced his oil consuption to nill. With that many miles that stuff must work.
I have a 1996 ford escort with 114,000 on it and have been using maxlife 5w30 in it since 70,000. Car runs great and still no leaks!
Just my experience!
Just my experience!
I still say that the main ingredient in high mileage oil is that it is more robust than the run of the mill conventional. I like it because it is not as constrained by CAFE related requirements--i.e., no starburst, no "Energy Conserving." Though typically the zddp is lowered to protect the emissions equipment.
I have a 1994 Civic with over 209,000 miles and it does not lose any oil as far as I can tell in a 5,000 mile OCI, and it has never seen a high mileage oil, just plain old 5w-30 (or 10w-30 on occasion).
On the other hand I have a 1991 Accord with 172,000 miles that leaks about 1qt in 3,000 miles and no high mileage oil has made any difference. Yes, it really does leak the oil and not burn it.
I have no doubt that high mileage oils can help *some* high mileage engines, but only some, and many high mileage engines run perfectly without anything special until the rest of the car disintegrates.
It is good marketing, as csp203 explained in more detail above.
On the other hand I have a 1991 Accord with 172,000 miles that leaks about 1qt in 3,000 miles and no high mileage oil has made any difference. Yes, it really does leak the oil and not burn it.
I have no doubt that high mileage oils can help *some* high mileage engines, but only some, and many high mileage engines run perfectly without anything special until the rest of the car disintegrates.
It is good marketing, as csp203 explained in more detail above.
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