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Time before mileage? #5429316 05/14/20 05:45 PM
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Local Color Offline OP
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just wondering - 2016 Land Rover LR4 SC-V6 ---- 9200 miles


Last oil change one year ago almost to the month - but Ive only gone a 1000 miles since then (dont ask)


Should i change synthetic oil after a year with only 1000 miles??

cheers

Re: Time before mileage? [Re: Local Color] #5429320 05/14/20 05:48 PM
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A_Harman Offline
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no


2008 Dodge Ram 3500 diesel/G56
1985 Z51 Corvette track car 355/6-speed
2002 Camaro Z28 LS1/6-speed
2001 Dodge Ram 2500 diesel/NV4500+GV
1972 GMC 1500 shortbed project truck 307/SM465
Re: Time before mileage? [Re: Local Color] #5429322 05/14/20 05:50 PM
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Eddie Offline
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No. The one year rule is or should be based on a normal daily driver who drives 5 to ~ 10,000 miles per year. JMO. Ed


2014 CX5 Touring 2.5L :-)
Re: Time before mileage? [Re: Local Color] #5429327 05/14/20 05:55 PM
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Local Color Offline OP
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thanks - so. what if next year I only drive another 1000 miles? Does Synthetic ever go bad??

Re: Time before mileage? [Re: Local Color] #5429379 05/14/20 07:09 PM
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Gebo Offline
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I would. You may get a lot of opinions that are just that, opinions. I change all my oils at 6 months or 3-5k miles. I'm socially inept.

There are very few "true" synthetics if you go by German standards. hide


'98 LEX LS400 310K
'02 4Runner 250K
'05 Lex LS430 90K
'07 Lex GX470 75K

Shell Gas and Truck 5w-30
Amsoil OE 10w-30
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Re: Time before mileage? [Re: Local Color] #5429451 05/14/20 08:50 PM
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Local Color Offline OP
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ok follow my logic - flawed or not - JLR spec is 0-40 or 0-30 - so I have to ask - I use the truck - then I don't use it for a week - So I would guess 0 weight would drain back to the CC pretty fast - a week later I start it up - no accumulator or pre-lube - is it possible that im causing a little more wear on the insides? Just curious - please don't flame me - i come from the high viscosity era...

thanks

Re: Time before mileage? [Re: Local Color] #5429464 05/14/20 09:21 PM
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JimPghPA Offline
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One big thing to consider, and OP did not supply, is was that 1000 miles all short trips, or instead trips that were long enough to get the oil hot enough to boil off moisture and or fuel contaminants, or a mix of both? If it was all short trips then definitely change it and the filter. If the oil has been brought up to temperatures high enough to boil off the liquid contaminants often enough, then the oil probably would be go to go for another year.

So OP, what is the answer in regard to the above operating history?

Last edited by JimPghPA; 05/14/20 09:21 PM.

Boy will I be happy when ALL vehicles on public roads are autonomous.


JimPghPa

Re: Time before mileage? [Re: Local Color] #5429795 05/15/20 10:48 AM
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Local Color Offline OP
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right now most are short trips - 5 to 10 miles. Temp gauge is where it is supposed to be when I arrive - seems it should be operating temp plus more...

shoot!

Re: Time before mileage? [Re: Local Color] #5429806 05/15/20 11:09 AM
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kschachn Offline
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Originally Posted by Local Color
ok follow my logic - flawed or not - JLR spec is 0-40 or 0-30 - so I have to ask - I use the truck - then I don't use it for a week - So I would guess 0 weight would drain back to the CC pretty fast - a week later I start it up - no accumulator or pre-lube - is it possible that im causing a little more wear on the insides? Just curious - please don't flame me - i come from the high viscosity era...

Well first off there is no "0 weight oil", and there in Texas the winter rating of the oil is irrelevant. The 40-grade will always be thicker than the 30-grade irrespective of the winter rating.

But both will pump just as fast as when you start the vehicle. There will be no difference.


1994 BMW 530i, 252K
1996 Honda Accord, 288K
1999 Toyota Sienna, 434K
2000 Toyota ECHO, 284K
Re: Time before mileage? [Re: Local Color] #5432248 05/18/20 10:37 AM
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Local Color Offline OP
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Thank you - help me understand "boil off moisture or fuel contaminates" even cold I suspect there are low quantity gases in the crankcase. When I start the car, and as it warms - the crankcase pressure is controlled by the pvc system. When really hot, ans underway the oil is being agitated - where does this "boiling off" take place - perhaps aerate?

thanks

Re: Time before mileage? [Re: Local Color] #5433117 05/19/20 09:14 AM
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wings&wheels Offline
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Originally Posted by Local Color
Thank you - help me understand "boil off moisture or fuel contaminates" even cold I suspect there are low quantity gases in the crankcase. When I start the car, and as it warms - the crankcase pressure is controlled by the pvc system. When really hot, ans underway the oil is being agitated - where does this "boiling off" take place - perhaps aerate?

thanks


As it was taught to me; Moisture will build up in the engine when it first starts, as will unburnt fuel to some extant. Then, as the oil heats up, the volatile contaminants will evaporate. As the PCV should keep the crankcase at a slight vacuum, the evaporation "boiling off" occurs at a lower temperature than it would outside of the engine.

I do annual oil changes regardless of miles, but assuming the 1,000 miles weren't done in 2 mile trips, you could stretch a bit, but I would not go much over 18 mos or so...but that's me.

Very nice vehicle, I came very close to buying a '16 LR4, wound up w/ a '17 RR HSE w/ the turbodiesel. Enjoy!


'05 Lotus Elise S/C
'85 Land Rover 90 diesel
'74 Triumph TR6
'74 BMW 2002
'72 Land Rover Series III 88"
'99 Porsche 996
'01 Porsche Boxster S (mostly Wife's...)
'19 VW Golf R (Wife's)
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