What was you fuel dilution?
Best 20K oil
- Thread starter N3n
- Start date
You're going well over 2x longer than most believe is even "possible" with your engine. If you believe everyone, your engine will only survive a few hundred miles longer than the automaker's warranty and explode.... There will be issues with cam phasers, timing chain guides, etc, etc yet the engine oil is still very much viable according to UOAs. These UOAs are a pesky thing ! Suggestions are always to have them done but don't believe or accept them when they go against conventional (here) wisdom !
2.4% @5k miles
2.6% @10k miles
Superbuick96
Site Donor 2023
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Highway miles, engine in good shape but out of warranty, port injection, decent sized sump. Mobil 1 EP, Amsoil SS, HPL. 20k= doable with suitable filter (s).
4WD
$50 site donor 2024
I ran a bunch of M1 AP and disclaimers mentioned being under warranty and when exceeding OEM recommendations
(and of course one year max)
Never ran it over 10k though … and that’s “extended” use for me
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As a tech for a whole lot of manufacturers, currently at BMW.
At ford we told customers 5,000 miles max.
At Nissan we told customers 5,000 miles max.
At VW we did 10,000 miles in TDI and 5,000 miles in gas. Also don’t carry 508/509 oil. Only use 504/507 0w30
At Toyota we did 5,000 miles max, if 10k changes were done you had an oil burner before 100,000 miles on engine, especially when the 0w16 grade was used.
At BMW we do 5,000 mile, BMW says 15,000. Also we don’t run 20wt in anything. BMW (Castrol) 0w30
Seen a lot of ford engines needing Replacing when oil was not changed.
At Honda changed oil at 5,000 miles max.
Almost Every consumer falls under the extreme category.
Moral of story don’t extend drains, just do 5,000 mile intervals and call it a day. Your engine will thank you.
At ford we told customers 5,000 miles max.
At Nissan we told customers 5,000 miles max.
At VW we did 10,000 miles in TDI and 5,000 miles in gas. Also don’t carry 508/509 oil. Only use 504/507 0w30
At Toyota we did 5,000 miles max, if 10k changes were done you had an oil burner before 100,000 miles on engine, especially when the 0w16 grade was used.
At BMW we do 5,000 mile, BMW says 15,000. Also we don’t run 20wt in anything. BMW (Castrol) 0w30
Seen a lot of ford engines needing Replacing when oil was not changed.
At Honda changed oil at 5,000 miles max.
Almost Every consumer falls under the extreme category.
Moral of story don’t extend drains, just do 5,000 mile intervals and call it a day. Your engine will thank you.
Just an opinion to lob out there...I don't see many 20k mile oils working from a xw20 viscosity if direct injection and or T-gdi is involved. Small oil capacities and fuel diluted doesn't make for a easy run. Would run either the hpl or amsoil
I believe most manufacture limits these days say 10,000 miles or 1 year as their upper limit, right?
You forgot about Supertech's 20K oil.
Of the three I'd choose Mobil1 EP but I'd never go 20K on any oil.
Amsoil here claims guaranteed protection 25k/1 year.
That is strictly marketing, to ‘keep’ the cost of ownership down. Read the usage part and there is normal and extreme. Mostly all consumers fall under extreme.
Find an actual guarantee and the wording they use.
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I'd never run any oil 20,000 miles. Not even the Amsoil SS 25,000 mile oil if I changed the filter every 8,000 miles. Ever.
However, I am going to run Amsoil in our 2020 Toyota Rav 4 XLE but, will change it every 7,500
miles. Period.
NO WAY I'd chance ANY OIL at 25, 000 miles.
However, I am going to run Amsoil in our 2020 Toyota Rav 4 XLE but, will change it every 7,500
miles. Period.
NO WAY I'd chance ANY OIL at 25, 000 miles.
Agreed
