Anyone use Synthetic oil?

Re: Anyone use Syntec oil

upstageright said:

My brother changed to Syntec in his Honda and increased his milage by 2 mpg.

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I changed because I get it for free.

But now that I did .. I would pay for it. I really like it.

Re: Anyone use Syntec oil

i have used it since i got my truck and i dont know about the mpg he got but i can tell you that synthetic doesnt have the build up of organic and you can go farther between oil changes and since i got my truck new i like the idea that i hav had that protection since first oil change and they say it makes more horsepower also so thats abou it
later
jester

Re: Anyone use Syntec oil

a 2mpg gain from switching to synthetic is highly unlikely. your oil would have to have been really dirty to see even half that.

i use mobil one myself because it's frequently on sale at wallyworld. i have not noticed any mileage gains in any of the vehicles i run it in, but it comes out clean everytime and allows me to run long drain intervals.

Re: Anyone use Syntec oil

everything mobil one

Re: Anyone use Syntec oil

my truck has 15k on it...would it be ok to switch to syn? and will it void any of my warranty? and i dont just mean engine oil either, im talkin about the diffs too..or is that a bad idea?

Re: Anyone use Syntec oil

I think the NBS trucks have synthetic in the rear diff already, but not the front :crazy:

Re: Anyone use Syntec oil

mobil one :read:

Re: Anyone use Syntec oil

We make the Mobil One oil bottles ...

Re: Anyone use Syntec oil

I run it in 2/3 of my rides...the Ford marks it territory due to the rear main leaking.

Anyway... you can push M1 for a long time. I ran it to 20K in my Z71 (changing filter and adding a qt every 5K) and the motor runs as strong as can be.

DO NOT waste it by changing the M1 at 3-4K mi, it simply lasts far longer than that.

Re: Anyone use Syntec oil

Also if you're going to run oil for a long time...make sure that you use a damn good filter (NOT fram), because even if the oil is still good, it picks up dirt.

Re: Anyone use Syntec oil

I use the cheap ass filters from Pimp Boyz as they are reboxed Purolaters... FYI

Re: Anyone use Syntec oil

spitfire2332 said:

my truck has 15k on it...would it be ok to switch to syn? and will it void any of my warranty? and i dont just mean engine oil either, im talkin about the diffs too..or is that a bad idea?

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synthetic oil won't void your warranty. and as fas at the rear diff, it probably already has synthetic in it. just check the manual to see what it has.

Re: Anyone use Syntec oil

Whifflebat said:

Also if you're going to run oil for a long time...make sure that you use a damn good filter (NOT fram), because even if the oil is still good, it picks up dirt.

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hastings and baldwin are two excellent filters.

01GMC said:

We make the Mobil One oil bottles ...

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we're keepin' it in the family.

Re: Anyone use Syntec oil

triple_deep82 said:

synthetic oil won't void your warranty. and as fas at the rear diff, it probably already has synthetic in it. just check the manual to see what it has.

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well, can i change to syn right now? i have 15k miles...ive heard stories that once you;'ve used regular for a certain time u cant use syn, then ive heard other words...cuz if i can switch and its better for my engine then im gonna do it

Re: Anyone use Syntec oil

More freeway driving is better for oil, it goes bad when it gets contaminated as moisture and such get into it.

I went to Syn @ 5K on my WRX, runs great w/o any oil loss.

Re: Anyone use Syntec oil

ive used valvoline synpower on my last 2 trucks. its a newer formula than the mobil one. i think im gonna make the switch to mobil one on this ride though. i thought this thread was gonna be about castrol syntec, i wouldnt put castrol in my lawnmower!:read:

Re: Anyone use Syntec oil

hovisimo said:

we're keepin' it in the family.

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What you talkn bout willis?

Re: Anyone use Syntec oil

01GMC said:

What you talkn bout willis?

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if you make the bottles for mobil one and we all use it, then we're keepin' it in the family! it's a random phrase i made up on the spot that apparently doesn't make much sense without an explanation.

brando said:

What do you recomend for a good oil filter?? now that i just rebuilt my motor im using syn oil, and i used a fram filter! i thought they were good!!??

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hovisimo said:

hastings and baldwin are two excellent filters.

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brando said:

Whats a good mile amount to change the oil if you do alot of highway driving?

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i check mine every week or two and if i see it's getting a little dirty i change it. i usually run 7500 mile drain intervals with mobil one 5w30.