If it does the job at 150,000 miles it will do it at 300,000.
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- Thread starter MIAMI-DADE
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Umm. No thanks for your
RKAus05 Fuchs is at 49 Mcintyre Road, Sunshine, VIC 03 9300 6400.
speedtc, 150,000 miles is no challenge at all. You could run with out oil changes in older engine designs and make it to 120,000 miles no trouble. Belive it or not a lot of people do this they just keep topping off. Then you have Amsoil rolling advertisments running their bypass system, air filter and oil with almost 500,000 miles with only 1-3 oil changes their whole life.
This is not an anti-20Wt. post either!!! I am just trying to point out that by todays standards 100,000 is nothing. It definately does not prove anything. Now I will say that as I see more and more of these vechiles go past 170,000 miles running dino or blend 5W20's with no consumption or smokeing it will slowly make a difference in my belief. My concerns have always been related to valve train and ring wear.
I think it is important to know wich Xw20 is being run. The hths of various Xw20's varies a lot. I think Redlines 5W20 has an HTHS of 3.3 wich is higher then M1EP 10W30 and most other 5W30's and 10W30's.Most 5W20's though are far from 3.3 most are in the high-mid 2's.
In my book a vechile running a 5W20 with an HTHS of 3.3 will wear better then the same vechile running a 5W30 or 10W30 with a HTHS of 2.9- 3.1. Now obviously both oils would have to have a decent additive package but they do not have to be equal.
This is not an anti-20Wt. post either!!! I am just trying to point out that by todays standards 100,000 is nothing. It definately does not prove anything. Now I will say that as I see more and more of these vechiles go past 170,000 miles running dino or blend 5W20's with no consumption or smokeing it will slowly make a difference in my belief. My concerns have always been related to valve train and ring wear.
I think it is important to know wich Xw20 is being run. The hths of various Xw20's varies a lot. I think Redlines 5W20 has an HTHS of 3.3 wich is higher then M1EP 10W30 and most other 5W30's and 10W30's.Most 5W20's though are far from 3.3 most are in the high-mid 2's.
In my book a vechile running a 5W20 with an HTHS of 3.3 will wear better then the same vechile running a 5W30 or 10W30 with a HTHS of 2.9- 3.1. Now obviously both oils would have to have a decent additive package but they do not have to be equal.
How do you get an HTHS of 3.3 with a 5W-20 oil? Redline is not that high
I have a '96 4.6L Ford Modular motor with 215K. I am running Castrol Syntec 5W-20, and the engine feels and sounds great. I wish this oil had been used for the life of the engine.
Previous owners used 10W-30 conventional which sludged and varnished the engine to some degree by 185K. Rings were coked or bores glazed. Oil consumption was high, yet oil was clean. All heck broke loose when I switched to M1.
I think I finally have it clean. There were no particles in the drain pan or filter, nor metal on the plug magnet last time. Head looks like bare metal, and oil consumption is 3-5 times less. The engine runs like new.
I highly recommend you run a 5W-20 synthetic in that engine. Also, I highly recommend running something continuously in the gas for constant cleaning and lubrication. My engine went through its death throws while I cleaned the fuel system, then ran perfect thereafter. Your engine should run well past 300K miles if you treat it perfect from the start.
Previous owners used 10W-30 conventional which sludged and varnished the engine to some degree by 185K. Rings were coked or bores glazed. Oil consumption was high, yet oil was clean. All heck broke loose when I switched to M1.
I think I finally have it clean. There were no particles in the drain pan or filter, nor metal on the plug magnet last time. Head looks like bare metal, and oil consumption is 3-5 times less. The engine runs like new.
I highly recommend you run a 5W-20 synthetic in that engine. Also, I highly recommend running something continuously in the gas for constant cleaning and lubrication. My engine went through its death throws while I cleaned the fuel system, then ran perfect thereafter. Your engine should run well past 300K miles if you treat it perfect from the start.
JB, I'll have to somewhat disagree with you here. Virtually all of the SL-SM/GF-3/4 5w20s have a HTHS of 2.6 as the specs virtually forces this value. The only one's that don't are boutique oils like RedLine which don't have the API certification. Therefore, I doubt the population of 5w20 users using a 5w20 with a HTHS value greater than 2.6 even amounts to 1%.
Further, the HTHS value is used way too indiscriminately for my tastes. If the manufacturer of the engine doesn't require a specification which requires a specific HTHS spec then this is just another misapplied arbitrary value chosen by Desperate Housewives. If we were talking track engines where 97% of the time the engine is at WOT, then that's another story.
How did you clean it?
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As you correctly thought, it would be unlikely for anyone to "personally" own a 300k 5w-20 spec'd vehicle. It would require 50-60k a year of usage. Anyone doing 50-60k a year in personal transportation is not (typically) keeping it into the 300k range. In 5 years we may see a few 300k engines. Think of the MILLIONS of 5w-30 engines, of all that have been made, that never see 200k for some odd reason. Think of how many out of the MILLIONS that you know have reached 300k ..very few in comparison to the number made. It will take over a decade of JUST 5w-20 spec'd engines ..with 5w-20 being the most popular oil ..to ever get a fair comparison.
but, FWIW, I use it in a 140k 91 Vulcan that had an unknown ..but assumed fair maintenance record for 120k (probably with 5w-30) ...5w-20 works just fine in it with 6 months OCI and a little over a quart consumption between changes. It's endured long duration high speed events ..and much short trip usage as well. It doesn't care.
but, FWIW, I use it in a 140k 91 Vulcan that had an unknown ..but assumed fair maintenance record for 120k (probably with 5w-30) ...5w-20 works just fine in it with 6 months OCI and a little over a quart consumption between changes. It's endured long duration high speed events ..and much short trip usage as well. It doesn't care.
I used various low-viscosity synthetic oils doped with one or two quarts of HDEO. Oil would slowly turn toward blackness at 5000miles. I found lots of particulate matter in the drain pan early on, and none now. Gaskets don't stink or weep any longer either. It was a mild cleanup job, but much needed nontheless.
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