Sorry Doug, my comment wasn't aimed specifically at you, although you weren't exactly being nice either. Up until recently I've only seen 15w40 HDEOs on the shelf and RTS. Ok, so now can you please give me a good reason why I should switch from my 5w-40 RTS to 10w30 Rotella? Not being sarcastic.
Thick Crowd
- Thread starter Taylor
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If you have to look for it, you're probably better off using what you're using. Most of the farm supply type outfits carry the 10w30 HDEO ..but it's usually at a slight premium over off the shelf 15w40. 5w-40 Rotella is still a relative good buy. You can't get XD-3 0w30 ..nor (I think) the RTS SB (blend) 0w-30. Delo may be available ..but I think you'll be ordering it (more $$$).
Naturally, there are Amsoil's offerings in the 30 grades, but we're on par with D1 for costs, so it kinda mandates a real run to get your money's worth.
Naturally, there are Amsoil's offerings in the 30 grades, but we're on par with D1 for costs, so it kinda mandates a real run to get your money's worth.
Hi,
wcbruzer - Thank you and, no I can't! I probably would have used a conforming 10w30 HDEO from the start, but the lubricant you are using is a great one
Shell's Rotella SB Synthetic Blend 10w30 and their Rotella T Multigrade 10w30 are both excellent products
Diesel engines probably benefit most of all in the fuel economy stakes from using lighter viscosity lubricants where they are specified - this is especially so when used in City/Urban use
As well these lubricants typically flow through the ring pack quicker too and minimise deposits, at the same time aiding in "fire ring" cooling
Not all diesel engines are engineered for the use of 10w30 HDEO lubricants - IMO they should be used where they are enabled
wcbruzer - Thank you and, no I can't! I probably would have used a conforming 10w30 HDEO from the start, but the lubricant you are using is a great one
Shell's Rotella SB Synthetic Blend 10w30 and their Rotella T Multigrade 10w30 are both excellent products
Diesel engines probably benefit most of all in the fuel economy stakes from using lighter viscosity lubricants where they are specified - this is especially so when used in City/Urban use
As well these lubricants typically flow through the ring pack quicker too and minimise deposits, at the same time aiding in "fire ring" cooling
Not all diesel engines are engineered for the use of 10w30 HDEO lubricants - IMO they should be used where they are enabled
wcbcruzer,
I may have sparked your defensiveness inadvertently which was not my intention. You had stated that an owner may poor any ole 10w30 into a diesel requiring a HDEO 10w30. I stated that they need to read the manual better and made the reading comprehension statement, I intended to infer the importance of reading and following manufacturer specs carefully. There are indeed 10w30's available and it is advantageous to run them in engines that can benefit from them as Doug Hillary put so well.
I may have sparked your defensiveness inadvertently which was not my intention. You had stated that an owner may poor any ole 10w30 into a diesel requiring a HDEO 10w30. I stated that they need to read the manual better and made the reading comprehension statement, I intended to infer the importance of reading and following manufacturer specs carefully. There are indeed 10w30's available and it is advantageous to run them in engines that can benefit from them as Doug Hillary put so well.
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I`m definitely one of the thick growd guys. I`ve always used a 20W50 in all of my cars most of the year. 15W40 is the thinnest I run(during our *cool* winters,which usually stay in the 70s).
I saw somewhere recently,I think it was a Penrite oil that was a 5W60. Not sure where exactly,but it was on a car chat group somewhere on the net.
I saw somewhere recently,I think it was a Penrite oil that was a 5W60. Not sure where exactly,but it was on a car chat group somewhere on the net.
so what pros/cons would you say result from running a 5w50 where a 20w50 is specd? i know im not the only one that likes to experiment cough gary cough 
but if one was to find better results with a different viscosity than recommended im sure everyone would agree, they would stick with it?
but if one was to find better results with a different viscosity than recommended im sure everyone would agree, they would stick with it?Originally Posted By: Taylor
so what pros/cons would you say result from running a 5w50 where a 20w50 is specd? i know im not the only one that likes to experiment cough gary cough but if one was to find better results with a different viscosity than recommended im sure everyone would agree, they would stick with it?
None. You have the proper operating viscosity with cold weather performance much closer to operating viscosity. All is good.
so what pros/cons would you say result from running a 5w50 where a 20w50 is specd? i know im not the only one that likes to experiment cough gary cough
but if one was to find better results with a different viscosity than recommended im sure everyone would agree, they would stick with it?None. You have the proper operating viscosity with cold weather performance much closer to operating viscosity. All is good.
I am neither a thickie nor a thinnie. Rather I prefer to run the perfect grade in all my engines: 10w30!
Hi,
TallPaul - An interesting comment. 10w30 has probably been the most enduring multigrade oil of all considering it was introduced around 60 years ago!
TallPaul - An interesting comment. 10w30 has probably been the most enduring multigrade oil of all considering it was introduced around 60 years ago!
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We need a support group moment here:
My name is Gary Allan ..and I'm a non-switch hitting bi-viscosity head.
Or we could have TallPaul's Goldilocks moment:
The 20 grade was too light
The 40 grade was too heavy
..but the 30 grade was juuuuuuust right
My name is Gary Allan ..and I'm a non-switch hitting bi-viscosity head.
Or we could have TallPaul's Goldilocks moment:
The 20 grade was too light
The 40 grade was too heavy
..but the 30 grade was juuuuuuust right
Until I'm convinced the move to 5-20s are for the good of the engine and not to satisfy CAFE, I'm not moving over to the light side. I'm keeping the TL on a diet of ACD 30wt for it's entire life so the teardown many years from now can be compared to the same motors running a 20wt their entire life. Really, in my climate of barely freezing winters and 105 degree summers, is anyone going to argue tht a 5-20 will protect better?
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Well, that's about it then. No worries
That's the important thing.
I don't think 5w-20 will protect better ..but then again I don't think a 30 grade will either. My view is that there's a very broad margin and that both sit well within it with mostly overlapping characteristics.
Many do not agree
..and that's just fine
I don't think 5w-20 will protect better ..but then again I don't think a 30 grade will either. My view is that there's a very broad margin and that both sit well within it with mostly overlapping characteristics.
Many do not agree
Hi,
sum tymes wee jus luse tha plott...........................
sum tymes wee jus luse tha plott...........................
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Originally Posted By: Doug Hillary
Hi,
sum tymes wee jus luse tha plott...........................
That's okay, Doug, we're Yank(er)s. We don't always have to make sense
Hi,
sum tymes wee jus luse tha plott...........................
That's okay, Doug, we're Yank(er)s. We don't always have to make sense
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Originally Posted By: BuickGN
Originally Posted By: Gary Allan
I don't think 5w-20 will protect better .
Sorry, Gary, I'll take what I can get.
Go-hade. Glad to be of help.
Originally Posted By: Gary Allan
I don't think 5w-20 will protect better .
Sorry, Gary, I'll take what I can get.
Go-hade. Glad to be of help.
Hi,
We Ozzies know that - that's why we love ya so!
We Ozzies know that - that's why we love ya so!
Two words: Freezer Test.
I've done the freezer tests. Pre-2005 PP in 5W30 stayed thinner in the freezer at 20 below than the 0W20 Mobil1 if the slosh test is to be believed. Believe it or not, the sloshiest of several oils I tested at -20F was 5W20 Havoline dino (the old style, Moly-rich Havoline). 10w30 High mileage Pennzoil was the worst, but yellow bottle Pennzoil Dino sloshed at that temp, too. But the old Havoline seemed to barely thicken.
I wonder if Havoline experienced a rise or falloff in sales when they changed? Anyone know?
I wonder if Havoline experienced a rise or falloff in sales when they changed? Anyone know?
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