My Wife has a 2008 Chrysler Town & Country Van. It has the 4.0 v-6. Owner's manual says to use 10w30. No other weight can be used. It even says if you use synthetic, it must be a 10w30. Yet if the van had came with the smaller 3.8 v-6, 5w20 is the preferred oil. So I use 10w30.
10W-30
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Originally Posted By: jamesyarbrough
Originally Posted By: dlundblad
Random question. If 5w and 10w 30 are both so similar, how can people get different wear numbers?
Ive actually seen better numbers with 10w oil. How's it possible?
Interesting. Care to post a link?
Honestly I don't care to dig that deep. Anyone with experience want to chime in?
Originally Posted By: dlundblad
Random question. If 5w and 10w 30 are both so similar, how can people get different wear numbers?
Ive actually seen better numbers with 10w oil. How's it possible?
Interesting. Care to post a link?
Honestly I don't care to dig that deep. Anyone with experience want to chime in?
I run 10w30 a lot. As a matter of fact my next oil change is sitting on my work bench ready to go in this weekend. VML 10w30.
It makes no difference when you live in a climate that never goes below 40*
It makes no difference when you live in a climate that never goes below 40*
Originally Posted By: dlundblad
Originally Posted By: jamesyarbrough
Originally Posted By: dlundblad
Random question. If 5w and 10w 30 are both so similar, how can people get different wear numbers?
Ive actually seen better numbers with 10w oil. How's it possible?
Interesting. Care to post a link?
Honestly I don't care to dig that deep. Anyone with experience want to chime in?
Jeepman3071's recent PYB UOA is one, he's been running PYB for over a year, did a UOA on 5w30 which was good, just did one on 10w30 that was even better. Same use pattern, actually a few more miles on the 10w30 and they both covered similar portions of winter driving as well.
PYB UOA's from jeepman3071
Originally Posted By: jamesyarbrough
Originally Posted By: dlundblad
Random question. If 5w and 10w 30 are both so similar, how can people get different wear numbers?
Ive actually seen better numbers with 10w oil. How's it possible?
Interesting. Care to post a link?
Honestly I don't care to dig that deep. Anyone with experience want to chime in?
Jeepman3071's recent PYB UOA is one, he's been running PYB for over a year, did a UOA on 5w30 which was good, just did one on 10w30 that was even better. Same use pattern, actually a few more miles on the 10w30 and they both covered similar portions of winter driving as well.
PYB UOA's from jeepman3071
I agree with you Red and i use it often as it often fits within my manufacturers recommended viscosities. But here on BITOG we like to split hairs over numbers, and often appear to know more about oil than the engineers who designed our engines.
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I use 10w30 in my supercharged corvette and it purrs, zero problems. It flows the same as 5w30 in socal
Originally Posted By: barkingspider
I use 10w30 in my supercharged corvette and it purrs, zero problems. It flows the same as 5w30 in socal
You're gonna have guys tell you that 5w30 flows 5/10,000ths of a second faster.
I use 10w30 in my supercharged corvette and it purrs, zero problems. It flows the same as 5w30 in socal
You're gonna have guys tell you that 5w30 flows 5/10,000ths of a second faster.
Originally Posted By: barkingspider
I use 10w30 in my supercharged corvette and it purrs, zero problems. It flows the same as 5w30 in socal
I'm using 10w30 in my 500HP supercharged mustang.
I use 10w30 in my supercharged corvette and it purrs, zero problems. It flows the same as 5w30 in socal
I went into a O'Reilly store yesterday to buy a creeper. I noticed that they had a display with some closeout products that included some Castrol Edge FST quarts of various viscosities for $7.99/qt. I asked the cashier if he would sell them to me for $5/qt. He asked his manager and she said to sell them to me for $3/qt. So I found 5 10w30 qts and was very excited to close the deal. I left the 5W-20/30 qts for someone else.
I have tested the 5w30 and 10w30 in my Honda. They appear to be exactly the same product and protect similarly.
I have tested the 5w30 and 10w30 in my Honda. They appear to be exactly the same product and protect similarly.
Originally Posted By: fdcg27
10W-30 is superceded by 5w30.
There's really no reason to use a 10w30 over a 5w30 other than price.
I have 10w30 oils in my stash only because I got them at a price I couldn't pass up.
A 10w30 is fine in warmer weather here and is fine anytime in your climate.
It just isn't the first choice.
+1
10W-30 is superceded by 5w30.
There's really no reason to use a 10w30 over a 5w30 other than price.
I have 10w30 oils in my stash only because I got them at a price I couldn't pass up.
A 10w30 is fine in warmer weather here and is fine anytime in your climate.
It just isn't the first choice.
+1
Originally Posted By: KCJeep
Originally Posted By: dlundblad
Originally Posted By: jamesyarbrough
Originally Posted By: dlundblad
Random question. If 5w and 10w 30 are both so similar, how can people get different wear numbers?
Ive actually seen better numbers with 10w oil. How's it possible?
Interesting. Care to post a link?
Honestly I don't care to dig that deep. Anyone with experience want to chime in?
Jeepman3071's recent PYB UOA is one, he's been running PYB for over a year, did a UOA on 5w30 which was good, just did one on 10w30 that was even better. Same use pattern, actually a few more miles on the 10w30 and they both covered similar portions of winter driving as well.
PYB UOA's from jeepman3071
Anyone know how he can get better numbers like that? Iron is more than half. That's impressive.
Originally Posted By: dlundblad
Originally Posted By: jamesyarbrough
Originally Posted By: dlundblad
Random question. If 5w and 10w 30 are both so similar, how can people get different wear numbers?
Ive actually seen better numbers with 10w oil. How's it possible?
Interesting. Care to post a link?
Honestly I don't care to dig that deep. Anyone with experience want to chime in?
Jeepman3071's recent PYB UOA is one, he's been running PYB for over a year, did a UOA on 5w30 which was good, just did one on 10w30 that was even better. Same use pattern, actually a few more miles on the 10w30 and they both covered similar portions of winter driving as well.
PYB UOA's from jeepman3071
Anyone know how he can get better numbers like that? Iron is more than half. That's impressive.
I run 10w30 all the time but not as the only oil in my mixes. In my climate, unless I travel to places where it gets awfully cold, it works great, it can be had on sales at low prices, and if you are in a warm climate it is every bit as good. One size does not always fit all, and economics will always have a say in any decision.
Originally Posted By: dlundblad
Random question. If 5w and 10w 30 are both so similar, how can people get different wear numbers?
Ive actually seen better numbers with 10w oil. How's it possible?
Because it's inappropriate to use UOAs to compare wear numbers between two different oils. It's hard enough to divine anything about wear from a UOA, let alone cherry picking a couple to show that 10w30 is doing "better" than a 5w30.
I wouldn't buy a word of it unless every variable possible were eliminated, there was a sufficient sample size, and things were verified by tear downs.
Random question. If 5w and 10w 30 are both so similar, how can people get different wear numbers?
Ive actually seen better numbers with 10w oil. How's it possible?
Because it's inappropriate to use UOAs to compare wear numbers between two different oils. It's hard enough to divine anything about wear from a UOA, let alone cherry picking a couple to show that 10w30 is doing "better" than a 5w30.
I wouldn't buy a word of it unless every variable possible were eliminated, there was a sufficient sample size, and things were verified by tear downs.
Originally Posted By: Doc Holiday
My Wife has a 2008 Chrysler Town & Country Van. It has the 4.0 v-6. Owner's manual says to use 10w30. No other weight can be used. It even says if you use synthetic, it must be a 10w30. Yet if the van had came with the smaller 3.8 v-6, 5w20 is the preferred oil. So I use 10w30.
It doesn't say that when temps under 32*F are expected that 5w30 can be used?
My Wife has a 2008 Chrysler Town & Country Van. It has the 4.0 v-6. Owner's manual says to use 10w30. No other weight can be used. It even says if you use synthetic, it must be a 10w30. Yet if the van had came with the smaller 3.8 v-6, 5w20 is the preferred oil. So I use 10w30.
It doesn't say that when temps under 32*F are expected that 5w30 can be used?
Originally Posted By: fdcg27
10W-30 is superceded by 5w30.
There's really no reason to use a 10w30 over a 5w30 other than price.
I have 10w30 oils in my stash only because I got them at a price I couldn't pass up.
A 10w30 is fine in warmer weather here and is fine anytime in your climate.
It just isn't the first choice.
I agree, except I think 10w30 has its place in cars that are oil burners, to reduce consumption a bit in warmer months. I agree that 5w30 is the favored choice now over 10w30, even in later applications it was called for in like the various years of GM's 3800 engine. But 10w30 still has a place on the shelf...
10W-30 is superceded by 5w30.
There's really no reason to use a 10w30 over a 5w30 other than price.
I have 10w30 oils in my stash only because I got them at a price I couldn't pass up.
A 10w30 is fine in warmer weather here and is fine anytime in your climate.
It just isn't the first choice.
I agree, except I think 10w30 has its place in cars that are oil burners, to reduce consumption a bit in warmer months. I agree that 5w30 is the favored choice now over 10w30, even in later applications it was called for in like the various years of GM's 3800 engine. But 10w30 still has a place on the shelf...
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Originally Posted By: dlundblad
Random question. If 5w and 10w 30 are both so similar, how can people get different wear numbers?
Ive actually seen better numbers with 10w oil. How's it possible?
Define "better" ? You mean you've done tear-downs and observed that an engine with 10w30 had less wear than one with 5w30 or are you just looking at UOA's which aren't meant to contrast wear?
Random question. If 5w and 10w 30 are both so similar, how can people get different wear numbers?
Ive actually seen better numbers with 10w oil. How's it possible?
Define "better" ? You mean you've done tear-downs and observed that an engine with 10w30 had less wear than one with 5w30 or are you just looking at UOA's which aren't meant to contrast wear?
UOA's are great for measuring wear. BuickGN had a very nice UOA from his Grand National, with half a piston in the oil pan.
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