[Nismo54]

My dealership recommended Mobil 1 at the first oil change (3750 but not before 2000).

 

[FuzzyRag]

I'd believe it, I've seen far more charts and graphs showing this stuff works than the typical TBS and so called "MPG increase" gimmicks.

 

[BudrBean]

I got a '06 crew cab se with about 400 miles on it so far. I was thinking of switching to synthetic oil. Some say to switch after break in and some did it earlier. I drive my truck about 5 miles round trip to work and back home. When should you change to synthetic oil? Also is is bad to switch back to dino oil later on?

I would definitely go the full oil change interval on the break in oil. That way any materials that may float around through break in can get passed through and filtered. It is reccomended that once you use synthetic oil, not to go back. Since most synthetics last longer anyways, it usually equals the same price or sometimes less.

You said you only drive 5 miles a day. In the automotive world this is termed "rough driving conditions". Your engine is manufactured to operate most efficiently at normal operating temperature. And if you are driving only 5 miles, very rarely would it get to temperature. While there is obviously nothing you can do about it, it is actually more strenuous on your engine. Myself, I am going to use AMSOIL Synthetic 5w30....guaranteed to last 25,000 miles, but in a situation like yours they reccomend a change every 15,000.

Hope this info helps

 

[slewfoot]

i've used synthetic on my tranny, t-case and driveshafts. i change them at specified intervals for conventional oils. i've noticed less metal flakes on the magnet plugs. i also noticed my transmission shifts better in cold weather with the synthetic. i've always used castrol 5w-30 in the engine with no problems at all. if it ain't broke......but it is quite tempting cause my mileage is getting rather high.

 

[BudrBean]

why do you change the synthetic oil at normal reccomended intervals? Its not even close to needing a change at 3,000

 

[kilago]

I got a '06 crew cab se with about 400 miles on it so far. I was thinking of switching to synthetic oil. Some say to switch after break in and some did it earlier. I drive my truck about 5 miles round trip to work and back home. When should you change to synthetic oil? Also is is bad to switch back to dino oil later on?

i changed mine at 1000, but about going back, on my last car, my dealership changed my oil once without telling me first, so they made my car go back to dino...i didn't see anything different in behavior...so I don't think switching is that bad...although it's probably not recommended.

 

[tgbiden]

Not engine maintenance inclined... :roll:

So is this HP improvement with an Automatic or a Manual transmission that you're supposed to get the bonus? Or does it even make a difference?

I have a manual transmission in my 2006 with about 4200 miles and I was thinking about switching to synthetic at the next oil change but I hadn't thought of the other oils. I guess you recommend changing them all... And does it void the Nissan extended warranty if you only change the oil every 15,000 or 25,000 with synthetic oil?

Thanks!
Tim

 

[slewfoot]

hey budr...i use conventional in the engine. synthetics everywhere else. so....i change at regular intervals because i tow and am off road a lot. i should have been more clear. i'm thinking of switching to synthetic in the engine.

 

[outlnder]

And does it void the Nissan extended warranty if you only change the oil every 15,000 or 25,000 with synthetic oil?

Synthetic oil will not void a warranty, but not changing any oil for 15k to 25k miles probably will.

Try to stay around 5k to 10k miles. 10k at the high end. Remember, you paid a good chunk of money for your truck, don't fry the engine trying to save $30 or $40.

 

[BudrBean]

I do my own vehicle maintenance, how is a dealership going to know when I change my oil?

 

[outlnder]

By the wear and tear at specific locations. Also, sludge build up around the valve srpings and rockers.

 

[fronty2005]

Not engine maintenance inclined... :roll:

So is this HP improvement with an Automatic or a Manual transmission that you're supposed to get the bonus? Or does it even make a difference?

I have a manual transmission in my 2006 with about 4200 miles and I was thinking about switching to synthetic at the next oil change but I hadn't thought of the other oils. I guess you recommend changing them all... And does it void the Nissan extended warranty if you only change the oil every 15,000 or 25,000 with synthetic oil?

Thanks!
Tim

i've been using synthectic Mobil1 since 7500 mile, now i got 32k.
i changed my oil every 3750 miles interval, igot my oil and filter at work for free!

does anybody here follow what oil manuf interval 15,000 or 25,000
if you got 7500 mile since your last oil changed do u know how thick and dark your engine oil when its cold its like a pan cake syrup.

so let say you follow the oil manuf recommendation 15k i guess the u got maybe like 1 1/2 quart in there. at 25 k no oil in there ur engine will lock up
dealer void your warranty bec you did not follow nissan oil interval.
engine cost around $3-4,000 plus 5 hours or more on labor

synthetic oil/filter changed on most dealer are $60
$30 DIY

if you want to keep your internal engine component working proprerly do ur oil changed internval regularly

intake valve timing sensor and timing solenoids, those two part go bad first , dirty oil will clogged the solenoids and slugged build up on sensor will make them go bads ,

 

[BudrBean]

Im not so stupid that I would let my truck run on 1 1/2 quarts of oil. If you do the 25,000 mile thing you woud OBVIOUSLY keep it topped off if need be.

Yall are failing to realize that synthetic oils have a MUCH LONGER LIFE than conventional oil. All you know is that all your life you have been told to change the oil every 3000 miles. Your engine dont know how many miles it has been since your last oil change......it just wants good oil. And if the synthetic oil is still good after 15,000 miles.....why change it? You have to change your way of thinking. Dont assume Im stupid for not changing my oil every 3,000

 

[fronty2005]

Im not so stupid that I would let my truck run on 1 1/2 quarts of oil. If you do the 25,000 mile thing you woud OBVIOUSLY keep it topped off if need be.

Yall are failing to realize that synthetic oils have a MUCH LONGER LIFE than conventional oil. All you know is that all your life you have been told to change the oil every 3000 miles. Your engine dont know how many miles it has been since your last oil change......it just wants good oil. And if the synthetic oil is still good after 15,000 miles.....why change it? You have to change your way of thinking. Dont assume Im stupid for not changing my oil every 3,000

im sorry you mis-interpret my message, first idid not called you stupid..

second there's NO motor oil that still good after 15,000 miles

 

[fronty2005]

I wouldnt say that you never have to do it again......it just changes your normal intervals. Like when Im due my first oil change in about 600 miles, I am switching to AMSOIL Pure Synthetic. It was $60 for oil and filter, but its guaranteed for 25,000 miles. Personally Im not gonna go that long on the first one......maybe 15,000 then cut the filter open to have a look inside my engine. And if all is well, I will go 25,000 the next time.

]

i would not go for 15,000 mile and never go 25,000

by cutting your oil filter, it just black/sticky slugged build up if you do your experiment 15k and 25k

good luck

 

[fronty2005]

I got a '06 crew cab se with about 400 miles on it so far. I was thinking of switching to synthetic oil. Some say to switch after break in and some did it earlier. I drive my truck about 5 miles round trip to work and back home. When should you change to synthetic oil? Also is is bad to switch back to dino oil later on?

I would definitely go the full oil change interval on the break in oil. That way any materials that may float around through break in can get passed through and filtered. It is reccomended that once you use synthetic oil, not to go back. Since most synthetics last longer anyways, it usually equals the same price or sometimes less.

You said you only drive 5 miles a day. In the automotive world this is termed "rough driving conditions". Your engine is manufactured to operate most efficiently at normal operating temperature. And if you are driving only 5 miles, very rarely would it get to temperature. While there is obviously nothing you can do about it, it is actually more strenuous on your engine. Myself, I am going to use AMSOIL Synthetic 5w30....guaranteed to last 25,000 miles, but in a situation like yours they reccomend a change every 15,000.

Hope this info helps

5 mile of driving you've already ready the engine normal tempsm, thant includes, idle, accel and decel.

 

[fronty2005]

I do my own vehicle maintenance, how is a dealership going to know when I change my oil?

oh they will know trust me, if you go 15k,25k they will know...they will not see it in your oil filter like you said by cutting/open it up.

they will take a peak on you oil filler , top of your engine valve train, they will see sludge build up in there... and they will sell you a engine flush, let say u declined engine flush that will be on the record/history of you truck. and maybe after15k-25k you heard knocking/tapping noise somewhere in your engine. tech will ck your veh history, they will dignose it and it might not be under warranty if repair is needed.


actually we have one in the shop G35, need an engine because never did a oil/filter changed since he bought it now have 26k.

just piece of advice for you BudrBean, if you want to keep your engine running properly do what everybody does here in this forum(maintaining there truck in full/powerful condition) not the idea you have. it just adevertisement for oil company .

 

[BudrBean]

You guys are basing this off of a vehicle using CONVENTIONAL OIL. Once again.....SYNTHETIC OIL IS FORMULATED TO PREVENT SLUDGE AND BUILDUP AND CAN BE GUARANTEED FOR UP TO 25,000 MILES!!!!!

 

[fronty2005]

You guys are basing this off of a vehicle using CONVENTIONAL OIL. Once again.....SYNTHETIC OIL IS FORMULATED TO PREVENT SLUDGE AND BUILDUP AND CAN BE GUARANTEED FOR UP TO 25,000 MILES!!!!!

NOPE they wont prevent sludge and build up. if you're so eager about this synthetic oil u want to use nobody's stopping you, it's your truck anyways, we're just here trying to help you not to damage your engine. GOOD LUCK ON YOUR 25K EXPERIMENT

 

[tc3driver]

I do my own vehicle maintenance, how is a dealership going to know when I change my oil?

All I can say to you is, IF and I mean IF you have an engine problem (trust me I have been through it), they may demand reccords of your oil changes, I'ts not hard for a mechanic to look inside an engine and see how often the oil has been changed, typacly a motor who's oil has been changed at irregular intervals and who's oil was left in for long periods of time will build up sludge, and believe me, it saved my *** that I used mobil1 and changed it every 3k, even though I couldnt produce the reccords, the mechanic, my last car had the engine replaced at 42k, said the engine looked like it had less than 3000 miles on it, and if it werent for all the metal flakes everywhere he would have thought that nothing was wrong.

but they can tell... it is not hard to tell...

especialy if you have been abusive to your car (not implying that you are).

and synthetics do buildup sludge, just takes a little longer for the sludge to build up. but it still breaks down over time. dont believe me, I can put you in touch with mechanics who service nothing but cars that come from the factory with synthetics.

while yes, synthetics are suposed to last longer... they will still break down, will still sludge up... and will still be evident as to abuse via infrequent oil changes.