Go 10000 miles on Synthetic?
10-29-10, 11:53 AM
#16
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i met a guy who owned ford escort and was changing oil every 10k miles using royal purple oil....the car had 150k and still running strong...personally i wouldn't go over 6k...
10-29-10, 11:59 AM
#17
To this day I wonder why our car's manual says every 7,500 miles on dino oil and filter to be changed every 15,000 miles. And yet the dealers want every 5,000 miles and changes the filter every time.
Why can we not follow the car's manual?
Why can we not follow the car's manual?
10-29-10, 06:10 PM
#18
Intermediate
What you may imply is that lean fuel/air mix burns hotter and may heat up small internal parts of combustion chamber. That can destroy the head, hypothetically, but in no way it will make whole engine run hotter and will make no effect on oil life.
10-29-10, 07:17 PM
#19
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sorry been busy past few days. to answer the question about the hot engine topic -I'm sure I'm going to raise a lot Eye brows and raise some blood pressure - but If you don't believe me -ask around-google it-ask your dealer-mechanic,etc,.
ok to share were I got the info on toyota(lexus) v6 engines running hot. First is from personal experience doing mechanical work on these engines. These engines are sludge makers. I guarantee that I can open up any engine here -even my own and find some kind of sludge in there. Now its normal in some engine(other manufacturers) to find it, but I have found it in toyota at less than 50k, comapre to others at 100k and higher.
the problem I see with the toyota engine is that they they utilize all the space inside the engine that the passages ways for circulating oil inside is so small that it just does not get enough oil in area to properly cool off. also, its passages are so small that it takes longer for it to circulate back to pan when the engine turns off. causing it to cake(gel) up.
second - If you google it you will find thousands of customer, mechanics, engineerers that will say that these engine are a nuclear reactor (phrase). Now for those who asked how can this be possible with coolant running inside and oil circulating can this engine be so hot. well, open your hood. Did you notice how there is barely no space in there in that engine bay. did you also notice the front of our vehicle. did you notice the grill area and the small scoop on the bottom of the bumber. looks like the amount of air that will enter these opening will not be enough to circulate in the engine bay.
take look at these youtube video and tell me what you think now ?
http://www.youtube.com/watch?v=cNEZPKF_M_s
third-use synthetic oil for these engines if you plan to keep it for the long run. the oil holds up better and it will reward you by making less engine wear.
I hope Im not ranting-but I figure I give you a engineers and mechanic point of view.
and more importantly- of course I like my lexus. I would not have one if I didn't.
ok to share were I got the info on toyota(lexus) v6 engines running hot. First is from personal experience doing mechanical work on these engines. These engines are sludge makers. I guarantee that I can open up any engine here -even my own and find some kind of sludge in there. Now its normal in some engine(other manufacturers) to find it, but I have found it in toyota at less than 50k, comapre to others at 100k and higher.
the problem I see with the toyota engine is that they they utilize all the space inside the engine that the passages ways for circulating oil inside is so small that it just does not get enough oil in area to properly cool off. also, its passages are so small that it takes longer for it to circulate back to pan when the engine turns off. causing it to cake(gel) up.
second - If you google it you will find thousands of customer, mechanics, engineerers that will say that these engine are a nuclear reactor (phrase). Now for those who asked how can this be possible with coolant running inside and oil circulating can this engine be so hot. well, open your hood. Did you notice how there is barely no space in there in that engine bay. did you also notice the front of our vehicle. did you notice the grill area and the small scoop on the bottom of the bumber. looks like the amount of air that will enter these opening will not be enough to circulate in the engine bay.
take look at these youtube video and tell me what you think now ?
http://www.youtube.com/watch?v=cNEZPKF_M_s
third-use synthetic oil for these engines if you plan to keep it for the long run. the oil holds up better and it will reward you by making less engine wear.
I hope Im not ranting-but I figure I give you a engineers and mechanic point of view.
and more importantly- of course I like my lexus. I would not have one if I didn't.
10-29-10, 11:36 PM
#20
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^^ I don't buy it. When you said "Toyota V6", are you saying all Toyota V6 or some particular model - Some how I'm reading this as all V6? It seems like you're doing the unintended acceleration job scare accept this time with the oil sludge. I read a few years back on 'maybe' there was some problem with the 3.0L, but haven't heard about much on the newer ones. Also, this forum (Club Lexus) comprises of thousands of folks, if there is a sludge problem(s), I'm there would be many discussions on it. Last, I don't trust googling for information without some kind of research as a lot of the info out there are not credible.
Last edited by howdybob22; 10-29-10 at 11:45 PM.
10-30-10, 02:55 PM
#21
Lexus Champion
sorry been busy past few days. to answer the question about the hot engine topic -I'm sure I'm going to raise a lot Eye brows and raise some blood pressure - but If you don't believe me -ask around-google it-ask your dealer-mechanic,etc,.
ok to share were I got the info on toyota(lexus) v6 engines running hot. First is from personal experience doing mechanical work on these engines. These engines are sludge makers. I guarantee that I can open up any engine here -even my own and find some kind of sludge in there. Now its normal in some engine(other manufacturers) to find it, but I have found it in toyota at less than 50k, comapre to others at 100k and higher.
the problem I see with the toyota engine is that they they utilize all the space inside the engine that the passages ways for circulating oil inside is so small that it just does not get enough oil in area to properly cool off. also, its passages are so small that it takes longer for it to circulate back to pan when the engine turns off. causing it to cake(gel) up.
second - If you google it you will find thousands of customer, mechanics, engineerers that will say that these engine are a nuclear reactor (phrase). Now for those who asked how can this be possible with coolant running inside and oil circulating can this engine be so hot. well, open your hood. Did you notice how there is barely no space in there in that engine bay. did you also notice the front of our vehicle. did you notice the grill area and the small scoop on the bottom of the bumber. looks like the amount of air that will enter these opening will not be enough to circulate in the engine bay.
take look at these youtube video and tell me what you think now ?
http://www.youtube.com/watch?v=cNEZPKF_M_s
third-use synthetic oil for these engines if you plan to keep it for the long run. the oil holds up better and it will reward you by making less engine wear.
I hope Im not ranting-but I figure I give you a engineers and mechanic point of view.
and more importantly- of course I like my lexus. I would not have one if I didn't.
ok to share were I got the info on toyota(lexus) v6 engines running hot. First is from personal experience doing mechanical work on these engines. These engines are sludge makers. I guarantee that I can open up any engine here -even my own and find some kind of sludge in there. Now its normal in some engine(other manufacturers) to find it, but I have found it in toyota at less than 50k, comapre to others at 100k and higher.
the problem I see with the toyota engine is that they they utilize all the space inside the engine that the passages ways for circulating oil inside is so small that it just does not get enough oil in area to properly cool off. also, its passages are so small that it takes longer for it to circulate back to pan when the engine turns off. causing it to cake(gel) up.
second - If you google it you will find thousands of customer, mechanics, engineerers that will say that these engine are a nuclear reactor (phrase). Now for those who asked how can this be possible with coolant running inside and oil circulating can this engine be so hot. well, open your hood. Did you notice how there is barely no space in there in that engine bay. did you also notice the front of our vehicle. did you notice the grill area and the small scoop on the bottom of the bumber. looks like the amount of air that will enter these opening will not be enough to circulate in the engine bay.
take look at these youtube video and tell me what you think now ?
http://www.youtube.com/watch?v=cNEZPKF_M_s
third-use synthetic oil for these engines if you plan to keep it for the long run. the oil holds up better and it will reward you by making less engine wear.
I hope Im not ranting-but I figure I give you a engineers and mechanic point of view.
and more importantly- of course I like my lexus. I would not have one if I didn't.
Thanks for your response re; this matter,It`s hard enough to convince people when your just one voice.
10-30-10, 05:15 PM
#22
Yes, let's be clear here. The 3.0 Toyota v6 was the sludger, not the 3.3 and 3.5 litre.
Apparently, (take your pick, because only Toyota knows for sure), the oil passages in the 3.0 v6 were too small, the cooling passages were too small, the engine was tuned to run hot (lean) for lower emissions, and/or the PCV system was poorly designed.
The 3.3 and 3.5 were redesigned and, aside from lack of maintenance, are not sludgers by poor design.
Apparently, (take your pick, because only Toyota knows for sure), the oil passages in the 3.0 v6 were too small, the cooling passages were too small, the engine was tuned to run hot (lean) for lower emissions, and/or the PCV system was poorly designed.
The 3.3 and 3.5 were redesigned and, aside from lack of maintenance, are not sludgers by poor design.
10-30-10, 09:18 PM
#23
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Here is my vote on it I have always put in Mobile 1 5w30 bottle oil in my 2005 RX330. Brought oil with me on the first free 5k oil change and made sure that they did put it in the car. Change the oil every 5k and never look back on it.
10-31-10, 08:04 AM
#24
Super Moderator
Yes, let's be clear here. The 3.0 Toyota v6 was the sludger, not the 3.3 and 3.5 litre.
Apparently, (take your pick, because only Toyota knows for sure), the oil passages in the 3.0 v6 were too small, the cooling passages were too small, the engine was tuned to run hot (lean) for lower emissions, and/or the PCV system was poorly designed.
The 3.3 and 3.5 were redesigned and, aside from lack of maintenance, are not sludgers by poor design.
Apparently, (take your pick, because only Toyota knows for sure), the oil passages in the 3.0 v6 were too small, the cooling passages were too small, the engine was tuned to run hot (lean) for lower emissions, and/or the PCV system was poorly designed.
The 3.3 and 3.5 were redesigned and, aside from lack of maintenance, are not sludgers by poor design.
10-31-10, 02:27 PM
#26
Lexus Champion
I got my RX 330 With 59,000 miles on the clock. I didnt pull a valve cover or any of that,but I could tell after about a week of ownership it wasnt performing to its full potential. Went on the my Lexus site,found the previous one owner female had all the service/oil changes done at the dealer. (Which uses Synthetic blend oil) after a few runs of Mobil-1,then the real cleaning with Pennzoil Ultra,It definitely performs the way it should now. It might not have been sludge,but probably varnish. Because according to the records,she was going around 6to7k on the oci`s. bottom line to this is,I will only do 5k oci`s with full Synthetic/Synthetic blend. If nothing else,it`s piece of mind. And cheap insurance that I`ll have no engine problems. Some people could probably go 7k on conventional oil with supposedly no ill affect`s. I dont seem to be cut from the Lucky tree.
Last edited by lexus114; 10-31-10 at 02:31 PM.
10-31-10, 03:04 PM
#27
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the 3.0 are the most problem some on the sludge making. The 3.3 and 3.5 also have the same problem, but not as bad.
the earlier v6 are the well known sludge makers, but there were some early 4 cyl with the same similar problem. as far as saying not trusting google, ask you local mechanic, auto parts store,etc,.
sludge can be prevented with proper maintanence and yes synthetic will make sludge if you pass its life span (check manufacturer site).
I told you guys this would raise some eye brows. this topic is like the transmission shift issue, we all have different opinions on it, but the problem is out there.
the earlier v6 are the well known sludge makers, but there were some early 4 cyl with the same similar problem. as far as saying not trusting google, ask you local mechanic, auto parts store,etc,.
sludge can be prevented with proper maintanence and yes synthetic will make sludge if you pass its life span (check manufacturer site).
I told you guys this would raise some eye brows. this topic is like the transmission shift issue, we all have different opinions on it, but the problem is out there.
10-31-10, 03:31 PM
#28
No they don't. If these are sludging it's because of a lack of maintenance or neglect/fault of some other component (pcv valve, head gasket leak etc. etc.)
The 3.0 V6 (and some four cylinders) sludged up because of a design(s) fault. The 3.3 and 3.5 had internal changes and do not sludge up due to the way they are made.
The 3.0 V6 (and some four cylinders) sludged up because of a design(s) fault. The 3.3 and 3.5 had internal changes and do not sludge up due to the way they are made.
10-31-10, 09:27 PM
#29
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the 3.0 are the most problem some on the sludge making. The 3.3 and 3.5 also have the same problem, but not as bad.
the earlier v6 are the well known sludge makers, but there were some early 4 cyl with the same similar problem. as far as saying not trusting google, ask you local mechanic, auto parts store,etc,.
sludge can be prevented with proper maintanence and yes synthetic will make sludge if you pass its life span (check manufacturer site).
I told you guys this would raise some eye brows. this topic is like the transmission shift issue, we all have different opinions on it, but the problem is out there.
the earlier v6 are the well known sludge makers, but there were some early 4 cyl with the same similar problem. as far as saying not trusting google, ask you local mechanic, auto parts store,etc,.
sludge can be prevented with proper maintanence and yes synthetic will make sludge if you pass its life span (check manufacturer site).
I told you guys this would raise some eye brows. this topic is like the transmission shift issue, we all have different opinions on it, but the problem is out there.
I know we are a little off on the OP topic (my apology), but to call an entire line of Toyota V6 as sludge maker, nuclear reactor etc. is just insane especially when saying that it can be prevented with proper maintenance - huh. Talk about a little over the top descriptions or inaccuracy. As for asking mechanics, many out there are just flat out not that great - ran into my fair share of them.