Who's using 5w-30 synthetic oil?
12-22-2007, 11:14 AM
#46
yea synthetic is much better than the old natural oil. i get better gas mileage with syn than natural oil. I use 5w30 mobil 1 syn now. i get about 290 mi for about the 1st 500mi then its back to 250mi average.
12-23-2007, 12:34 PM
#49
Pro
Originally Posted by Sun Diego CL-S
5w- 30 Royal Purple full synthetic here.
same here. http://www.animegame.com/cars/Oil%20Tests.pdf for all the non beleivers
12-23-2007, 06:13 PM
#50
AcuredCLS
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i use 5W-30 castrol sytec havent had a problem, not sure what the last owner was doin..but ive been using castrol for years in all my cars from ford explorer to volvo s60T
i heard royal purple is the best oil you can use, but i was told to only use it if you have performance mods, other wise its bad for the car..any one else hear that?
i heard royal purple is the best oil you can use, but i was told to only use it if you have performance mods, other wise its bad for the car..any one else hear that?
12-23-2007, 06:33 PM
#51
Suzuka Master
I put Amsoil 5w30 this time, Mobil 1 before that. I will be going back to Mobil 1 my next oil change. I don't feel like paying extra for Amsoil, Mobil1 is good enough for my once a year oil change (since I drive 6-7K miles a year)
12-23-2007, 10:47 PM
#52
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I think It Also Depends on the Location I Use 10w-30 Here in TX, in the Book it recommend 10w 30 if the temp exceed some degrees i dont ve the manual with me right now....Heavy Oil "40 - 50" for higher miles, So ya'll becareful out there dont slug your cars!,
BTN: I Use Castro Synthetic and KN filter Also sometimes for my other cars i Use Mobil with Mobil filter
R.
BTN: I Use Castro Synthetic and KN filter Also sometimes for my other cars i Use Mobil with Mobil filter
R.
12-25-2007, 04:06 PM
#54
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Originally Posted by ReiDLos
Damn Dawg that aint Healthy.... 
,
R
,R
btw i switches to royal purple at 90k. i change at about 5-7k and oil still looks clean.
12-25-2007, 08:04 PM
#57
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Originally Posted by DLntheCL
same here. http://www.animegame.com/cars/Oil%20Tests.pdf for all the non beleivers
12-25-2007, 08:09 PM
#58
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Originally Posted by AcuredCLS
i heard royal purple is the best oil you can use, but i was told to only use it if you have performance mods, other wise its bad for the car..any one else hear that?
12-28-2007, 05:45 PM
#59
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Originally Posted by AcuredCLS
i heard royal purple is the best oil you can use, but i was told to only use it if you have performance mods, other wise its bad for the car..any one else hear that?
http://www.royalpurple.com/rp-video-5/HPoil.htm
DLntheCL- That article you posted-
12-28-2007, 07:38 PM
#61
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just a note about mobil1,,, only mobil 1 extended drain is PAO (synthetic) base stock tbn (total base number) of 12. the others are petro base stock TBN 8. Normal oil is TBN 7-8. The gov HAS ALLOWED Mobil, Castrol, Pensoil to label their petro base stock as synthetic.
IT BS becasue they are charging more for it and confusing the buying public. Only Amsoil PAO syn and mobile ED are TBN 12-13.
IT BS becasue they are charging more for it and confusing the buying public. Only Amsoil PAO syn and mobile ED are TBN 12-13.
01-19-2008, 12:50 AM
#62
Cruisin'
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You can, but you will pay
You COULD use 5W-30 instead of 5W-20, but according to fueleconomy.org, it "can lower your gas millage by 1-1.5%". Which means, you are going to be paying extra 3-6 cents per /gallon.
01-19-2008, 11:06 AM
#63
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Gain of 0.8% for GF-3 Oil:
http://www.epa.gov/orcdizux/cert/dearmfr/ccd0112.pdf
Gain of 1.0% for GF-4 Oil:
http://www.epa.gov/OMSWWW/cert/dearmfr/ccd0407.pdf
http://www.epa.gov/orcdizux/cert/dearmfr/ccd0112.pdf
Gain of 1.0% for GF-4 Oil:
http://www.epa.gov/OMSWWW/cert/dearmfr/ccd0407.pdf
01-20-2008, 07:40 PM
#69
i want a lip..
i work at a quick lube and we go to these little interventions where they say synthetic is better than conventional. synthetics are man made, and they're engineered to work harder when it gets hot. when coming to oil, synthetics the best choice because of its superior protection against thermal breakdown and its high performance compatibility.
at least thats what the quaker state president had to say about it, since our contract is with quaker.
mobil 5w30 every time.
at least thats what the quaker state president had to say about it, since our contract is with quaker.
mobil 5w30 every time.
01-20-2008, 07:49 PM
#70
i want a lip..
Originally Posted by LIPPSTUH
i use mobil 1 $25 at walmart. i change every 5-7500 miles... don't do every 3 people... that's just for the older cars. anyways read your owner's manual and it'll tell you something like 5000-7500
its recommended every 3,000 miles for people who do a lot of stop-go driving, such as a commute car. Quaker analyzed a car that drove across the nation without a single oil change, and the oil was still good because almost all of it was freeway driving.
all in all, its really up to the drivers income, availability, and willingness to do the oil change. i do mines every 3000 miles. works for me since i work there and get half off synthetics.
01-20-2008, 07:51 PM
#71
i want a lip..
Originally Posted by jumbosizeme79
ok, i still havent seen an actual scientific reason to change to sythenic, i mean results are fine n may vary, but what makes them vary?
01-20-2008, 07:57 PM
#72
i want a lip..
Originally Posted by fender4
comrad
I still change at the 10k mark only because it's the break even point for me 3k petro to 10k syn..
Yes I sell Amsoil to my friends and naighbors,, therefore when I started testing my oil (when my cl was new) I used it to baseline what to tell people.,, I wanted a large safety buffer because they forget to change it and ususally go 12 -15k or one year,, I was making them come in (my home garage) for a filter change every 5k,, but now with the new sub-micron filters I can go 10-15k on the oil and filters.
I have a real job in the aeronutical engineering field and I use science to prove out claims,, Moble1 ED and Amsoil seem to always be on top of various independent SAE tests.
All who use syn need to do what they are personally comfortable with,,
Amsoil 0w30 $$8-9/qt
Amsoil sub-micon EO filter $$12-15
Mobil ED $$6-8/ qt
ED filter $$ 9-11
I don't use Mobil because they have been known to change there formulas,, well documented,, they also have been know to advertise changing syn every 3k,, you have to remember they have a 50 year supply of petro oil they need to sell
Amsoil make a living trying to get peaple to stop changing there oil so often..
I still change at the 10k mark only because it's the break even point for me 3k petro to 10k syn..
Yes I sell Amsoil to my friends and naighbors,, therefore when I started testing my oil (when my cl was new) I used it to baseline what to tell people.,, I wanted a large safety buffer because they forget to change it and ususally go 12 -15k or one year,, I was making them come in (my home garage) for a filter change every 5k,, but now with the new sub-micron filters I can go 10-15k on the oil and filters.
I have a real job in the aeronutical engineering field and I use science to prove out claims,, Moble1 ED and Amsoil seem to always be on top of various independent SAE tests.
All who use syn need to do what they are personally comfortable with,,
Amsoil 0w30 $$8-9/qt
Amsoil sub-micon EO filter $$12-15
Mobil ED $$6-8/ qt
ED filter $$ 9-11
I don't use Mobil because they have been known to change there formulas,, well documented,, they also have been know to advertise changing syn every 3k,, you have to remember they have a 50 year supply of petro oil they need to sell
Amsoil make a living trying to get peaple to stop changing there oil so often..
01-21-2008, 11:53 PM
#73
A Man With Goals
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i run royal purple here 5w 30...its damn cold in wisconsin. i change oil every 4months or about 4,000mi b/c i'm poor, but synthetic can handle it easy.
the ICE BOWL III was terrible....
synthetic is the way to go...
the ICE BOWL III was terrible....
synthetic is the way to go...
01-22-2008, 03:03 PM
#74
Suzuka Master
iTrader: (1)
I went from 5w30 Mobile 1 to 10w30 when my blower was installed at 45K. I change it every 5K. It could probably go to 7.5K; however, when I replace it at 5K the oil is really black. Walmart usually has a 5 qt. package for around $23.75 before tax. I can't find the same deal for any less locally, even at CostCo.
The heat here in Florida is crazy hot during the summer months and the A/C is always cranked, so I run a little thicker. With 10w30 I consistently get 27-28 mpg on the highway at 75mph without boost. City mpg is always low because of stop/go traffic and frequent supercharger play
My CLS-6 has around 96K now and this oil has kept it running strong and reliable. The goal is to get another 75K if possible 
The heat here in Florida is crazy hot during the summer months and the A/C is always cranked, so I run a little thicker. With 10w30 I consistently get 27-28 mpg on the highway at 75mph without boost. City mpg is always low because of stop/go traffic and frequent supercharger play
My CLS-6 has around 96K now and this oil has kept it running strong and reliable. The goal is to get another 75K if possible
01-23-2008, 03:56 AM
#75
Nick
Originally Posted by apolon21
I just started to use CASTROL 5-30 SYNTEC......ANYONE HAVE AN OPINION????
I'm not sure what to expect...anyone else use it???
I'm not sure what to expect...anyone else use it???
Yeah same here, 5-30w Castrol Syntec, I change every 5K miles, that way it's easy to remember when to do it. No issues yet.
01-23-2008, 08:15 AM
#76
Senior Moderator
Originally Posted by ReiDLos
Damn Dawg that aint Healthy.... ,
R
,R
01-28-2008, 01:01 PM
#78
I Wanna Beer
5W-30 synthetic for me. Dad's cousins shop where I have it changed charges me around what normal oil costs for synthetic so there's no reason not to go with it.
01-28-2008, 01:25 PM
#79
01 CL-p Nighthawk Black
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ive been using mobile1 synthetic 5w-30 for all my vehicles, 02 ford explorer with more than 100k (runs like new- surprisingly on ford motor lol), my 01 cl, and 92 legend sedan (5spd, type II motor, over 130k miles)... all running without a single problem... i would say mobile 1 syn is way to go
(runs like new- surprisingly on ford motor lol), my 01 cl, and 92 legend sedan (5spd, type II motor, over 130k miles)... all running without a single problem... i would say mobile 1 syn is way to go
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