synthetics rule!

[zero_gravity]

so i made the switch to full synthetics over the weekend and i'm never looking back! my mpg jumped by about 5mpg! granted i needed an oil change and this is just over one full tank, but i'm still quite impressed. also having a longer change interval is nice too. plan to change the oil every 10,000 kms now instead of 5000kms.

i think this oil has justified its high price

[Jay2TheRescue]

They sure do. I've used nothing but synthetic in all of my vehicles for the past 6 years, and I've run nothing but synthetic in the Buick since I had a new engine put in it ~14 years ago.

-Jay

[dkjones96]

I only use synthetic because I can't find fossil oils light enough for what I like to run. A healthy fuel system on an engine that is used properly(not babied around ALL the time) and driven over 7 miles on most one-way trips should easily get 7.5K from a dino oil. The tracker's FSM even specifies a normal change interval of 7,500 and my 88 Cressida specified 10,000 miles.

[holypaulie]

Originally Posted by zero_gravity

so i made the switch to full synthetics over the weekend and i'm never looking back! my mpg jumped by about 5mpg! granted i needed an oil change and this is just over one full tank, but i'm still quite impressed. also having a longer change interval is nice too. plan to change the oil every 10,000 kms now instead of 5000kms.

i think this oil has justified its high price

What kind of synthetic oil have you switch to? I thinking about switching to Valvoline SynPower Full synthetic (supposted to be 4 x better then Mobil 1) after my Auto-Rx Engine Clean.

[zero_gravity]

most stores here are very biased towards castrol so i got stuck with castrol 75W-80 synthetic (synmax i think) for the gearbox and castrol 5W-30 syntec for the engine. just used a regular filter.

not really a bad thing, nothing wrong with castrol IMHO but some choice would be nice.

Originally Posted by holypaulie

What kind of synthetic oil have you switch to? I thinking about switching to Valvoline SynPower Full synthetic (supposted to be 4 x better then Mobil 1) after my Auto-Rx Engine Clean.

[swng]

I am considering to change the oil in my Matrix to synthetic oil. This option is available in the dealership where I go to. The main reason that I still have not done that is that against my belief, the dealership does not think that the 8,000 km/6 months oil change period can be prolonged after changing to synthetic oil, which is more expensive. That will render making the synthetic oil pay for itself more difficult.

[cmhj2000]

Yup, been using nothing but synthetics for 30 years. Many benefits to be obtained besides some MPG gains.

[JanGeo]

When you really want to use some lube that is the ultimate, long lasting, friction reducing, don't have to change it for 150,000 miles or 15 years synthetic . . . try some Synlube.

I put it in at the first oil change at 3,700 miles and added a little to bring it up to full after the first year and currently I am at 22,925 miles, still full and running great. Next May or later next year I will do a filter change when I get to 39,700 miles.

[zero_gravity]

lol wow. maybe one day with a beater i dont care about, but i dont have the balls for that right now

[slurp812]

Iv used dino oils for ever. I changed always 3000-5000 miles, and have never had an oil related issue. I had a ford escort that was blowing smoke at 137,000 miles tho. I didn't put all the miles on it. so who knows what happened with the first 80,000 miles. I just bet tho if it has synthetic from day one it would have lasted longer. I am a new synthetic convert tho. My car calls for 5w20. Not many brands even make that, but Mobil one does, so that is what I am using.