As I understand it, the benefit of the syn blend is that you can achieve the viscocity spread without using as much of the VII. This means better cold viscocity, more consistent viscocity, and a reduction of sludge contributors over time.
Semi Synthetic- Why use it.
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I usually purchase engine oil for yard equipment really close to me Autozone by convenience. They sell Kendall Semi-Synthetic for same price as branded conventional so I just use that.
I would use as topping oil but I am lucky thus far my vehicles don't consume a drop of engine oil before oil changes.
I would use as topping oil but I am lucky thus far my vehicles don't consume a drop of engine oil before oil changes.
Originally Posted By: rjacket
Originally Posted By: dave1251
I do not see where using a synthetic or semi-syn will protect any better than conventional in 90% of applications today. Almost all of us fall in this category.
Don't all German cars spec an oil that invariably has to be synthetic?
generally speaking, yes.
Originally Posted By: dave1251
I do not see where using a synthetic or semi-syn will protect any better than conventional in 90% of applications today. Almost all of us fall in this category.
Don't all German cars spec an oil that invariably has to be synthetic?
generally speaking, yes.
Originally Posted By: Topo
So I'm thinking if I do run synthetic blend, MC would be a great fit for my 6,000 mile changes, 60/40 split sounds real good. Now I understand why people prefer MC over other synthetic blends, thanks for that input. The price seems relatively good, Ford seems to think it's good for 7500 mile intervals.
NEVER use the Motorcraft oil in your car! The results of doing so can be catastrophic!
You drive a Chrysler...using Ford oil might cause a tear in the fabric of the space-time and cause the universe to invert!
Seriously, it should work just fine...though I';d run whatever 10w30 coinventional I got the best price on. (Probably Super Tech.)
So I'm thinking if I do run synthetic blend, MC would be a great fit for my 6,000 mile changes, 60/40 split sounds real good. Now I understand why people prefer MC over other synthetic blends, thanks for that input. The price seems relatively good, Ford seems to think it's good for 7500 mile intervals.
NEVER use the Motorcraft oil in your car! The results of doing so can be catastrophic!
You drive a Chrysler...using Ford oil might cause a tear in the fabric of the space-time and cause the universe to invert!
Seriously, it should work just fine...though I';d run whatever 10w30 coinventional I got the best price on. (Probably Super Tech.)
I also do not get it.
To my knowledge, I have never used a blend oil. Always either one or the other.
To my knowledge, I have never used a blend oil. Always either one or the other.
Wife and I both commute 97 miles round trip per day. So 5,000 mile changes in both our 07 Corolla and 00 ex-cop Crown Vic come pretty often. Just left Walmart where Castrol synthetic 5-30 is $26 per jug and semi synthetic is $17.67 per jug. With oil changes about every 2.5 months and highway driving (well she catches a little rush hour freeway), are we really gaining anything by using the fully synthetic oil? I want to save money where I can, but I want my cars to last.
No benefit at 5k mile changes, but if you ran synthetic you could extend your interval. May be worth it just to avoid changing as often.
Originally Posted By: Lane
Wife and I both commute 97 miles round trip per day. So 5,000 mile changes in both our 07 Corolla and 00 ex-cop Crown Vic come pretty often. Just left Walmart where Castrol synthetic 5-30 is $26 per jug and semi synthetic is $17.67 per jug. With oil changes about every 2.5 months and highway driving (well she catches a little rush hour freeway), are we really gaining anything by using the fully synthetic oil? I want to save money where I can, but I want my cars to last.
I watched Panther livery cars wind up 300-400,000 miles...they ran the cheapest 5w30 the company could buy a drum of, whatever oil filters they got the best price on (usually Purolators, occasionally STP), changed at 3-4K. Never saw a drop of synthetic oil after the factory fill was drained out, they idled all day in the summer to run A/C...highest miles I recall was 570,000 on a Town Car. Engine was untouched internally and ran like it was a new car. Your Vic will be fine on whatever 5W-20 or 5w30 you can get the cheapest.
Wife and I both commute 97 miles round trip per day. So 5,000 mile changes in both our 07 Corolla and 00 ex-cop Crown Vic come pretty often. Just left Walmart where Castrol synthetic 5-30 is $26 per jug and semi synthetic is $17.67 per jug. With oil changes about every 2.5 months and highway driving (well she catches a little rush hour freeway), are we really gaining anything by using the fully synthetic oil? I want to save money where I can, but I want my cars to last.
I watched Panther livery cars wind up 300-400,000 miles...they ran the cheapest 5w30 the company could buy a drum of, whatever oil filters they got the best price on (usually Purolators, occasionally STP), changed at 3-4K. Never saw a drop of synthetic oil after the factory fill was drained out, they idled all day in the summer to run A/C...highest miles I recall was 570,000 on a Town Car. Engine was untouched internally and ran like it was a new car. Your Vic will be fine on whatever 5W-20 or 5w30 you can get the cheapest.
Hmmm... sounds like maybe I'm spending too much. $26 a jug for synthetic, $17.67 for semi, some conventional oils there were around $12-14 a jug. This deserves reconsideration.
I've been using Motorcraft filters on the Ford, Toyota on the Corolla until the last case I ordered and got "NPN" or some such by mistake. Figured I couldn't go far wrong with factory filters. I use Mopar on the 99 Grand Cherokee.
BTW, the 2000 Vic says 5-30 under the hood, but dealer said "they all take 5-20."
I've been using Motorcraft filters on the Ford, Toyota on the Corolla until the last case I ordered and got "NPN" or some such by mistake. Figured I couldn't go far wrong with factory filters. I use Mopar on the 99 Grand Cherokee.
BTW, the 2000 Vic says 5-30 under the hood, but dealer said "they all take 5-20."
Originally Posted By: Lane
Wife and I both commute 97 miles round trip per day. So 5,000 mile changes in both our 07 Corolla and 00 ex-cop Crown Vic come pretty often. Just left Walmart where Castrol synthetic 5-30 is $26 per jug and semi synthetic is $17.67 per jug. With oil changes about every 2.5 months and highway driving (well she catches a little rush hour freeway), are we really gaining anything by using the fully synthetic oil? I want to save money where I can, but I want my cars to last.
"I want to save money where I can"
You can start by changing your OCI from 5000 to 7500....considering your driving habits.
Highway driving is easy on oil....and with a synthetic....7500 is easily obtainable.
By going to the above OCI (7500)....you'll be saving time, $$$$, and preserving valuable resources.
Wife and I both commute 97 miles round trip per day. So 5,000 mile changes in both our 07 Corolla and 00 ex-cop Crown Vic come pretty often. Just left Walmart where Castrol synthetic 5-30 is $26 per jug and semi synthetic is $17.67 per jug. With oil changes about every 2.5 months and highway driving (well she catches a little rush hour freeway), are we really gaining anything by using the fully synthetic oil? I want to save money where I can, but I want my cars to last.
"I want to save money where I can"
You can start by changing your OCI from 5000 to 7500....considering your driving habits.
Highway driving is easy on oil....and with a synthetic....7500 is easily obtainable.
By going to the above OCI (7500)....you'll be saving time, $$$$, and preserving valuable resources.
I had been wondering about longer oil change intervals. Would you lengthen the interval and stay with the synthetic? Am I gaining anything over plain conventional oil?
Come to think of it, her Grand Cherokee is set to remind us at 6,000 mile intervals. But it is used so seldom these days that I think changing by calendar instead of odometer may be in order.
Come to think of it, her Grand Cherokee is set to remind us at 6,000 mile intervals. But it is used so seldom these days that I think changing by calendar instead of odometer may be in order.
I just purchased transmission oil for my truck. I was considering Amsoil MTL full synthetic but it was going to cost me $16/litre, including shipping. GM dealer only charged me $8.40/l for GM Synchromesh Fluid, so I went for it even though it is not a full synthetic but only a synthetic blend.
GM Synchromesh Fluid seems to have a very good reputation, so I feel comfortable with my choice.
GM Synchromesh Fluid seems to have a very good reputation, so I feel comfortable with my choice.
There is a lot of confusion about synthetic blends because you don't always know how much synthetic and what kind goes into the blend. Another thing is that there is a rumor that a lot of conventional oils are actually synthetic blends. What probably matters more for your decision is not the type of oil, but the actual brand and name of product. Having said that, the used oil analysis reports indicate that Motorcraft semi-synthetic is a very nice oil, and not very expensive at our local Walmart. If it meets Chrysler's specs, you may want to consider it. A quality conventional or synthetic blend should be fine for 6 month/6,000 mile intervals, but not always since this may depend on your circumstances of how the vehicle used, etc. If you want to change your oil less frequently, then go with a good full synthetic oil and a quality oil filter.
Hmm... One wonders about "standardization." I'm running 5-30 Castrol SynTech - oops, now they call it "Edge" for some reason - in the Corolla and the Crown Vic. The Jeep has the same oil in 10-30. The Corolla (about 168K last time I checked) and the ex-cop Crown Vic (just past 190K) are our "commuters" right now. The Grand Cherokee gets cranked up if winter really gets bad, but since it got the 5½" lifted suspension and 33" tires, it gets lousy gas mileage. It's pretty much for going up into the hills or pulling the trailer.
My '96 Suburban has been sitting for 2-3 years, with a bad transfer case. But its 454 has 261,000 miles, has never had the heads off and never needed a quart between 3,000 mile changes. I ran Castrol 10-30 for the first 150-200K, then 20-50 except in winter (10-30 again) and added some HyPerLube.
If I remember correctly, I have Delo 400 15-40 in my seldom used '86 F250 (seldom used because unless you're rich you need a good reason to start up a carbureted 460 these days).
I haven't run my 1966 International for at least two years. I think I had the 20-50 Castrol in that. Eventually, I hope to get that and the Suburban back on the road.
I'm thinking life would be simpler if I standardized on one oil, and stocked up on that.
Oh yeah, my Suzuki DL650 is using Shell Rotella 15-40.
My '96 Suburban has been sitting for 2-3 years, with a bad transfer case. But its 454 has 261,000 miles, has never had the heads off and never needed a quart between 3,000 mile changes. I ran Castrol 10-30 for the first 150-200K, then 20-50 except in winter (10-30 again) and added some HyPerLube.
If I remember correctly, I have Delo 400 15-40 in my seldom used '86 F250 (seldom used because unless you're rich you need a good reason to start up a carbureted 460 these days).
I haven't run my 1966 International for at least two years. I think I had the 20-50 Castrol in that. Eventually, I hope to get that and the Suburban back on the road.
I'm thinking life would be simpler if I standardized on one oil, and stocked up on that.
Oh yeah, my Suzuki DL650 is using Shell Rotella 15-40.
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