| Author |
Message |
Henryk (Henryk)
New member
Username: Henryk
Post Number: 30
Registered: 8-2001
| | Posted on Wednesday, June 26, 2002 - 4:52 pm: | |
If one wanted to really get his engine clean internally, then why not use diesel engine oil? It has the most in cleaning agents than any oil. Drive the car 500 miles and then change to a regular oil. This would not be done every oil change. Any thoughts? |
Mark Foley (Sparky)
New member
Username: Sparky
Post Number: 5
Registered: 3-2002
| | Posted on Wednesday, June 26, 2002 - 2:32 pm: | |
Is 20W50 okay to use--my 328 manual recommends 10W40? Does 10W40 leak too much? |
Antony R Chapman (Antonio888)
New member
Username: Antonio888
Post Number: 8
Registered: 5-2002
| | Posted on Tuesday, June 18, 2002 - 10:36 am: | |
Have to agree with Magoo and Craig - my mechanic (who services and rebuilds the majority of F cars in Western Australia) sticks to AGIP for my 1980 308GTS. Had a long chat to him when I got the car and it broadly covers the comments made here on the synthetics. |
Neville Pugh (Nevpugh68)
New member
Username: Nevpugh68
Post Number: 38
Registered: 7-2001
| | Posted on Tuesday, June 18, 2002 - 6:52 am: | |
Just a point about "dirty oil" .... when you come to change your oil, having dirty oil is a GOOD THING !
Of the 7 or 8 main additives that go into engine oil, one of them is a cleansing agent (to lift and remove dirt from the engine components) and one is a suspension agent (to keep the dirt in the oil).
If your oil is dirty, this is good ... it means that the oil is doing it's job, the harmful dirt is being held in the oil (and of course, the big chunks will get filtered out by the filter). So, when you come to change the oil, all the dirt gets emptied with the oil.
Think about it .... all engines create dirt when they run - moisture, unburnt petrol, hydrocarbons, carbon, lots of nasty acidic fluids. If your oil comes out clean, you've got to ask yourself ... where's all the dirt ?!? (answer : still inside your engine, probably sat in some corner somewhere).
This is also why, when people run dino oil then swap to synthetic, then complain that the synthetic is crap coz it went dirty quickly ... wrong ! Synthetics generally have a lot more additives, the oil is just doing its job and cleaning all the dirt out of the engine that the previous oil left in there ! :-) |
Hans E. Hansen (4re_gt4)
New member
Username: 4re_gt4
Post Number: 36
Registered: 4-2002
| | Posted on Monday, June 17, 2002 - 3:32 pm: | |
If you are going to use Mobil 1 (and I don't really see any reason not to), a few points:
1. DON'T extend change intervals. Even Mobil emphasizes this.
2. Wally-World (WalMart) has 5 quart jugs of Mobil 1 for about $17. Cheap enuf for me!
3. Re: formulations - All oils are in a constant state of reformulation. I know that Mobil 1 has been changed 2 or 3 times in the last year or so. Same with other brands, synthetic nor not. Unlike most things in this world that get crappier with time, the oil companies are making good progress in making our engines last longer.
4. Leaks: Mobil claims no leakage probs. Others that I know who have experminented *extensively* claim a slight leakage problem on some engines. Not usually severe enough to worry about. |
Don McCormick (Dandy_don)
New member
Username: Dandy_don
Post Number: 18
Registered: 2-2002
| | Posted on Sunday, June 16, 2002 - 5:44 pm: | |
Glad I read the posting before putting the oil in the crankcase today. Thanx all, I will get the Castrol 20W50 and save the money. Extending the time between oil changes does not seem prudent even if the oil can handle it. Oil just seems too dirty after 3,000 miles. Thanx again. Don |
magoo (Magoo)
Advanced Member
Username: Magoo
Post Number: 2881
Registered: 2-2001
| | Posted on Sunday, June 16, 2002 - 1:36 pm: | |
Good point Craig...... |
Craig Dewey (Craigfl)
Member
Username: Craigfl
Post Number: 390
Registered: 1-2001
| | Posted on Sunday, June 16, 2002 - 7:48 am: | |
To add further to what Magoo said, many of the very new oils, SJ & SK have formulation changes to help with emissions. Because of this, additives that previously were used as viscosity improvers and for boundary lubrication have changed and been compromised for environmental reasons. It may be better for your car to use oil made for older cars - Like SE & SF rated only. Remember what happened when the switch to unleaded gas was made and the valve seat problems... I guess the jury is still out. |
magoo (Magoo)
Advanced Member
Username: Magoo
Post Number: 2879
Registered: 2-2001
| | Posted on Saturday, June 15, 2002 - 10:48 pm: | |
This will be a on going question as long as automobiles use oil. When I first got my 79 308 GTS I thought I would use a synthetic oil. So I called Mobil one and was connected with one of their engineers. I asked him what he thought about using a synthetic oil in my 79 GTS. He said he would not recommend it since the engine was designed to run on a high detergent reg., or fossil, oil. His reason was that the tolerances are different in the later designed engines that recommend synthetic oils. So I use a reg. 20/50 wt high detergent oil. I figure he should want to sell me synthetic but he didn't recommend it so there must be a reason. |
Mark Eberhardt (Me_k)
Junior Member
Username: Me_k
Post Number: 51
Registered: 5-2002
| | Posted on Saturday, June 15, 2002 - 9:24 pm: | |
Here's 2 more cents. Racing oils typically have more oil and less additives than normal oils. The additives do things like keep the engine lubed on cold starts and keep it clean. Street engines do a lot of that, race engines don�t. I don�t think I would use it. Street oil for the street. I have always liked and had good luck castrol. Consumers reports did a thing were they measured the engine parts, ran engines with different oils, then remeasured parts, castrol was the best as I recall, it was several years ago. The synthetics tend to have a more stable viscosity and will survive higher temps without brake down. If your engine is hot blooded, you may be better off with synthetic. |
Steve (Steve)
Junior Member
Username: Steve
Post Number: 171
Registered: 2-2001
| | Posted on Saturday, June 15, 2002 - 8:03 pm: | |
Everyone has their own thought on this so I'll add my 2 cents. When I 1st got my 77 308 I asked around and I was told by a few Ferrari mechanics that they would use Valvoline Racing 20W-50W and skip the syn. oil on an older car.They claimed that the 10-50W would have a tendency to leak out of the seals. So I've been using it for the last 4 changes (every 3000 miles). |
bruno bandaras (Originalsinner)
Junior Member
Username: Originalsinner
Post Number: 96
Registered: 5-2002
| | Posted on Saturday, June 15, 2002 - 11:40 am: | |
Castrol 20w50 for 20 years. Never let me down. Also am using castrol oil for over 75k miles in some other cars I own. Works great.Syntheic if you plan on driving car 10k miles this year. Maybe. The biggest thing about synthetic was how far you could go between oil changes and well, even if the oil dont break down what about the dirt and fine particles moving around in it. No 20w50 castrol. |
Frank Parker (Parkerfe)
Member
Username: Parkerfe
Post Number: 966
Registered: 9-2001
| | Posted on Saturday, June 15, 2002 - 10:48 am: | |
I believe the AGIP oil that came in the car is a synthenic blend . |
magoo (Magoo)
Advanced Member
Username: Magoo
Post Number: 2875
Registered: 2-2001
| | Posted on Saturday, June 15, 2002 - 8:48 am: | |
I like the idea of using a reg. oil as Rich says the Castrol 20/50 this way you run it approx. 1000 1500 miles and drain with a new filter. |
Richelson (Richelson)
Member
Username: Richelson
Post Number: 766
Registered: 12-2001
| | Posted on Saturday, June 15, 2002 - 5:29 am: | |
I use Castrol 20/50 in my 308. |
Edward Gault (Irfgt)
Intermediate Member
Username: Irfgt
Post Number: 1467
Registered: 2-2001
| | Posted on Saturday, June 15, 2002 - 5:28 am: | |
Unless you plan to extend your drain intervals I do not believe you will benefit financially or mechanicaly with the synthetic oil. |
Don McCormick (Dandy_don)
New member
Username: Dandy_don
Post Number: 17
Registered: 2-2002
| | Posted on Saturday, June 15, 2002 - 12:02 am: | |
I am refilling the engine oil after dropping and cleaning the engine oil pan. Planning on using 15W50 Mobil 1 for the oil. It sure is expensive. $4.78/quart. Owner's manual says 2.34 gallons of 10W50 AGIP oil which I interpret to be about 9 quarts. Will Mobil 1 be a good replacement here? Is it worth the extra cost? I am also using Mobil 1 in the tranny having dropped that pan last weekend and will refill tomorrow. Any thoughts would be appreciated. Don |