Just wondering what type of oil everyone is using.

 

Canola.

 

You should do a search as this poll has been posted many times.

But, while I'm here I'll answer you:

Redline 5w20 synthetic with an Amsoil filter

 

I use Mobil 1 Synthetic with Mobil 1 filter

 

I go 10k miles between changes oohhh the horror

 

 

Instead of a poll, do what juniorbean said, do a search. Then search the internet and read as many posts as you can on this subject. There's a lot of good information out there, some biased (ie: writer is trying to convince you to buy his product), and some unbiased. Come up with your own reasons for your choice.

In the end you won't do wrong either way - dino or synth - they're both fine. Follow the recommended interval between changes (see the manual), remember to change the filter, and you'll be golden.

 

Mobil-1 0W-20 with a Wix 51334 filter. The Wix filter has greater capacity and more filter area. It also has less pressure drop going through it than the Mobil-1 filter I used before. (The Mobil-1 filter is an excellent filter--just not as free-flowing as the Wix).

The analysis of the Mobil-1 oil I just got back from Blackstone/Dyson, showed that after 7500 miles it was just about perfect. According to the analysis, it could have gone to 10,000 miles easily--but I maintain the 7500 mile change schedule interval.

 

Hey resedaruss,

where do you get your filters?

 

mobil one 5w30 and wix 51334 @ 5k mile intervals.

 

ppl with mobil 1, do you notice that the engine is a bit noisier? i notice that the engine is a little bit noiser with mobil 1 in my car.

 

compared to what?

 

Some "writers" are also trying to find the best made regardless of avertising and marketing hipe. Some "writers" will review the best tests available and make conclusions based on science. And some "writers" don't give a s*&T what is used as long as the person using it is HAPPY

 

I’m one of the many that thinks synthetics & 3,000-mile changes are a waste of money.
Nothing but DEAD Barney’s in my engine every 7,500 miles.

Shawn S

 

You all really wait 5,000 or even 7,500 miles before your oil change? I never go beyond 4,000 and I feel guility about it. I commute 30mi in my CL-S every day (1/2 in city traffic).

 

NSXNext

I get my WIX filters from the auto parts store down the street. I don't think they are hard to get. Costs me about $6.50 each.

 

Thai

I can't detect any change in the noise-level of my engine with Mobil-1 (as opposed to other oils--dino or synthetic, 20 or 30 weight).

 

I usually change my oil about every 7500-8000 miles. I commute about 70 miles total each day... with 80% of that highway. No point in spending the extra money on synthetic to not take advantage of it's longer drain interval....

 

I use Mobil 1 5-30....change it every 3k...

I'd rather stay on the safe side than the latter. It's not wasting money compared to many things I see money spent on, on this board....

 

Amsoil 0w-30 w/ amsoil filter @ 7500 miles.

 

Whatever conventional I can get my hands on, or whatever the quick lube places decides. Changed every 3000 miles with Purolator PureOne filter.

 

Mrsteve

I obtained engine oil analyses before I decided upon the change interval. As I said above, after 7800 miles on Mobil-1, and an analysis by Blackstone / evaluation by Terry Dyson it was confirmed that the oil could easily have gone 10000 miles without any problem.

Analysis would show if engine metals are sloughing off into the oil. None is with my Mobil-1 0W-20. It only had .2% insolubles. Flash point was excellent for nearly 8000 miles. Why worry about changing out oil that pure before the recommended 7500 mile change interval.

 

Based upon the DC Metro area traffic, the oil change interval here is 3,750 miles. I also do alot of sitting in the car with the engine running. My job has a lot of down time on certain days and its nice to sit in the car with the engine and heat running. I like to change it no less than every 4,000 miles

 

How do you figure it's not a waste? It's not necessary to change the oil every 3k on the dot if you're doing mostly highway miles. Read your manual... it states in there that for highway driving you can change your oil every 7500... and that's with conventional oil. Springing for synthetic and a good filter then taking it to 7500 isn't exactly living on the edge. If people were going over 10k then I'd say that's not playing it safe... but 7500 (which seems to be the average change interval for synthetics on here) is perfectly fine. You're going the recommended maximum except with a better oil and filter.

Now, if you're doing mostly city driving then that's a different story.

 

mobil 1 5w-30 with acura filter:P
90% short city driving and change every 4500 miles. Am I ok?

 

VTECPOWER

Why not have it analyzed to be sure?

See http://bobistheoilguy.com/terry.html

 

Mobil 1 synth every 6 to 7 thousand miles.

 

So the whole 3 months or 3,000 miles is a thing of the past now I suppose.

 

By analysis my oil TBN is 7.6 to 8 after 10k miles,, most new petro oil is TBN 7-9.. So basically I am changing out new petro oil after 10k miles. I use Amsoil 0w30 and their filter (oversize sfd44) which I change every 5k miles. It was really tuff to leave my oil in for 10 k miles, I'm from old school of 3k changes. I decided to let science be the judge and did research into what is the best synthetic available. One company (Amsoil at the time) was promoting extended drain intervals and how to do it. I have not found by research any oil that is better,, now there is some that are very close. I choose to buy a AMSOIL Dealer card for wholesale buying privileges. I am therefor by default tied to Amsoil. BUT use/do what ever your comfortable with,,, I keep my cars for 200k plus and want the best and don't care about minor costs to have the best. I don't leave hidden msg to buy Amsoil, I'm open to all science analysis on this subject.

 

My dealer uses Castol syntec blend--recommends changes at 7500 miles or 6 months--says oils, blends, and syns are so much better than they were more frequent changes are worthless.

Has anyone changed their oil at 7500 and had an analysis done that said the oil was substandard or below specs so as to injurious to be engine life????
That seems to be the real issue.

 

Mobil one every 5000 miles (i like round numbers) with factory oil filter from VW.Mostly highway mileage and it's a turbo car .

Jens

 

This is a good point, and is similar to the point I've made before.

I've yet to see any evidence presented that using a dino oil at the factory recommended intervals is detrimental to a cars function either on the short or long term.

Yes, synthetics are 'better' products, but does that degree of 'better' matter? Granted, if you want to push your oil changes out over the suggested interval, a synthetic should hold up longer, but most of us are not going to wait 10,000 miles to change the oil just because we can (not to mention that going beyond the recommended 7500 miles or 1 year is in breech of the warranty agreement). Oil is cheap enough to treat as an expendible - saving a few $$ in oil changes over the life of the vehicle is just not a high priority.

...just being a devil's advocate, as always. >;]

 

Jens - seeing that you posted in this thread - maybe we can get an expert opinion...

1) How many cars or how often do you see premature engine failure felt due to the use of dino oil at manufactuer recommended intervals?

2) Do you feel that engines that have only (or mostly) seen synthetic oil require less service then their dino'ed counterparts?

3) Do you feel that engines that have only (or mostly) seen synthetic oil last longer until a major overhaul is needed?


(FWIW...I also use Mobil 1 but I still have a bit of doubt over it's real worth in a street driven automobile)

 

Are diamond grades any better than each other? For most no, it doesn't matter. There are always some people who make a living figuring out what is the BEST. Right now it doesn't matter. Down the road there might be a requirement for synthetics, but wait,, Corvette, AMG and others are now recommended it. The winds of change are blowing.