Synthetic Oil Discussion / Which Synthetic Oil?

Post by **racer12306** » Thu Jun 14, 2007 11:26 pm

I havent been able to check the mileage in the last couple weeks because I have nothing to compare to as I drive ~1.5 miles each way to work during the week.

But, during school I hadn't noticed much of a difference.

Last time I was under the car everything looked great, no seapage anywhere. But I'll have to take a peek again soon.

ewetho · Post by **ewetho** » Sat Jun 16, 2007 8:24 pm

You can alos try BG109 if you can find someone to sell you a can. Like an engine flush but primarily works on the rings and lifters.

kc2005ptgt · Post by **kc2005ptgt** » Sat Jun 16, 2007 11:29 pm

How is your rear main seal holding up? I know I was loosing stuff out of mine, and got a new one, now I am loosing stuff again

frickin DCx.

ewetho · Post by **ewetho** » Sun Aug 05, 2007 2:21 pm

mine is dry

03neonRT · Post by **03neonRT** » Sun Aug 05, 2007 3:53 pm

Anyone know if the rear main seal is covered under the 7/70 warranty?

kc2005ptgt · Post by **kc2005ptgt** » Sun Aug 05, 2007 4:10 pm

yes it is, at least mine was

anomalous0 · Post by **anomalous0** » Tue Aug 28, 2007 1:43 am

Was going to post a new topic but I figured I'd just add to this one:
AMSOIL ROCKS!!!
Changed it in today. No valvetrain noise. No piston slap. Usually I get a little of both, though the piston slap goes away after it warms up. The car was eerily quiet. I'll see how it holds up after 10,000 miles. I know it can go 25,000 miles, but 10K seems like a good number for starters. Maybe I'll even get it analyzed.

Post by **racer12306** » Tue Aug 28, 2007 9:41 am

on a first change it wouldn't be a bad idea to do 5000 or 7500 miles and then go up to 15000.

magnus · Post by **magnus** » Fri Sep 28, 2007 6:32 pm

I have a question about mobile 1 oil, if anyon can help out.

I always use 5w30 mobile 1 oil, and this time around, I bought mobile 1 oil for suvs. The new oil says that it is good for all motor vehicles. Should I have any problems with this? Only reason why I bought it, was becuase it came in the 5qt bottle and was cheaper than buying it by the quart.

Any opinions?

Thanks

Post by **racer12306** » Fri Sep 28, 2007 7:36 pm

No problems at all. It might have some minor formulation changes, but nothing that is going to hurt your engine.

If it carries an SL or SM rating then its good.

magnus · Post by **magnus** » Fri Sep 28, 2007 8:18 pm

It has an SM rating. I didn't think there would be any problems, just wanted to make sure. Thanks!

ewetho · Post by **ewetho** » Wed Apr 16, 2008 12:03 am

The bigger rating for our cars is the GF-4 which roughly equals the MS-6395 Mopar spec.

SGT BRAD · Post by **SGT BRAD** » Wed Apr 16, 2008 9:19 am

ok what's the deal i've been hearing that the ots synthetics are actually grade 3 base stocks or whatever? from what i gather the big companies reformulated a couple of years ago and are actually using ultra stable dino base stocks for the formulations. it apparently started with castrol. their synthetic isn't really synthetic at all if i read other threads correctly. i may be way off base with this, but could someone clear it up since i don't have hours to spend on bitog researching, but would like to know which way to go at this point. i have always been a mobil 1 user, but switched to pennzoil after it was touted to be superior. now i don't know where to go!!!

Post by **racer12306** » Thu Apr 17, 2008 10:38 pm

As far as "over the counter" synthetics, they are all going to have a group 3 base stock, Castrol, Pennzoil, Mobil 1, Supertech, etc.

Redline and AMSOIL are Group 4 or 5, can't remember which is which.

With a Group 3 oil, there is still chemical alteration taking place. Therefore it is still an optimized formula.

In my opion, Gropu 3 or higher = synthetic.

I have been using Pennzoil Platnum in my neon for a while and like it.

cebosk8 · Post by **cebosk8** » Fri Oct 03, 2008 7:01 pm

Diablo, can you tell me the no. part of the ACDelco filter?

Post by **racer12306** » Fri Oct 03, 2008 7:14 pm

AC Delco part numbers for all kinds of filters we use:

SE/SXT/R/T
PF53 (There is a PF53CL that is a little longer, ~8mm longer)

SRT
PFL400A (PFL400ACL is ~8mm longer)

Fat Filter from Ram, Caravan, etc
PF13 (PF13CL is ~9mm longer)

Donkeypuncher · Post by **Donkeypuncher** » Sun Feb 01, 2009 3:59 pm

Has anybody seen this new castrol edge oil? they're claiming 8X better wear protection than mobil 1. I read some site that said 15k mile oil changes, not sure if it's true though.

o2bfishn · Post by **o2bfishn** » Mon Feb 02, 2009 4:19 pm

i saw a commercial for it and there is a thread over at BITOG

it is a new full synthetic from castrol unlike castrol syntec which is just a blend. this one claims, as does mobil 1, that it will go 15k miles or one year on normal service (read: highway miles). amsoil has been claiming this since 1972 and actually says 25k miles for normal service or one year

it could just be marketing hype about it being 8x better than mobil 1. for example lets say that mobil 1 has a bearing wear test score of zero, whats 8x better than that? see my point.

plus mobil now has a new one themselves (not sure how long it has been out) called mobil 1 extended performance. this is the one that they say goes 15k miles. i dont think plain old mobil 1 made that claim

Post by **racer12306** » Mon Feb 02, 2009 7:36 pm

Syntec is a Full Synthetic, not a blend.

Speeder · Post by **Speeder** » Mon Feb 02, 2009 9:43 pm

Donkeypuncher wrote:Has anybody seen this new castrol edge oil? they're claiming 8X better wear protection than mobil 1. I read some site that said 15k mile oil changes, not sure if it's true though.

i was going to bring this up but i see that someone else seen it...
anyone see it in stores......

when i do my oil change i use their syntec......
but i did use their blend before
so far no problems....

o2bfishn · Post by **o2bfishn** » Tue Feb 03, 2009 4:39 pm

racer12306 wrote:Syntec is a Full Synthetic, not a blend.

i though it used Group III base stock? Group III is mineral based right? whereas other synthetics use IV or V

Post by **racer12306** » Tue Feb 03, 2009 4:46 pm

It is a group 3 oil, just like every other "over the counter" synthetic oil. Group 3 oils are synthetic.

Speeder · Post by **Speeder** » Wed Feb 04, 2009 7:58 pm

i went to pepboys to see if they had the new castrol oil and here it is

it looks good it has a yellowish tint to it
price at pepboy is $7.99 a dollar more than the castrol syntec
enjoy

Post by **occasional demons** » Wed Feb 04, 2009 9:40 pm

And only $2 less than Redline.

Speeder · Post by **Speeder** » Wed Feb 04, 2009 10:45 pm

true.......

o2bfishn · Post by **o2bfishn** » Thu Feb 05, 2009 10:30 am

racer12306 wrote:It is a group 3 oil, just like every other "over the counter" synthetic oil. Group 3 oils are synthetic.

yeah but group III is mineral based. group II and III are used to make semi synthetic oils. group IV and V are full synthetic. i think castrol edge must be made of one of these, but castrol syntec is group III, semi-synthetic. thats my understanding anyway.

Post by **racer12306** » Thu Feb 05, 2009 10:43 am

In the end, Group III synthetics are considered Full Synthetics, thus they are Full Synthetic oils, not semi synthetics. Semi synthetics are combinations of full synthetic and conventional

o2bfishn · Post by **o2bfishn** » Thu Feb 05, 2009 4:25 pm

gotcha, like i said it was just my understanding. im here to learn like everyone else...i hope

Donkeypuncher · Post by **Donkeypuncher** » Fri Feb 06, 2009 11:35 am

I've been using castrol for a long time so I thought this was interesting. I guess I'll just wait for someone to get it tested on Bob's oil forum, that usually gives you an idea of the quality.

From what I've been reading, that wear test is just 1 part of a battery of tests done to oil. At least that is the argument from the mobil 1 fans.

djbjammin814 · Post by **djbjammin814** » Wed Feb 25, 2009 3:34 pm

After my engine break in i was used royal purple. Not bad. Now im on AMSoil. AMSoil ROCKS!!!