mescolare olio motore

[DanyLand]

Mi ritrovo a dover fare un "rabbocco" importante all' olio motore(circa 2 litri o più).
Il quesito è questo:
E' un problema se utilizzo olio con la stessa gradazione, ma tipologia o marchio diversi?
(es.: Castrol Magnatec 5w30 A3/B3 con Castrol Edge 5w30 C3 o Castrol 5w30 con Shell 5w30 etc.)

O in alternativa se utilizzo lo stesso olio ma in gradazione diversa?
(es.: 5w30 mescolato a 5w40 della stessa marca e tipologia)

Grazie

[fntmra]

le specifiche, guarda le specifiche che siano uguali

[roby65to]

Se l' olio non è completamente diverso non succede nulla... certo che se dentro c'è un sintetico 5W30 non rabboccherei con un minerale 20W50

[DanyLand]

...chiaro sintetico con sintetico.

@fntmra: specifiche...a parte ACEA...le altre si assomigliano, ma mai uguali:

SODDISFA O SUPERA LE SPECIFICHE DI SETTORE:

SAE 5W-30
ACEA C3
BMW LL04
VW 504 00/ 507 00
Porsche C30
MB-Approval 229.31/ 229.51

..questo Castrol Edge.

Approvazioni e Specifiche:

API SL/CF
ACEA A3/B4
GM-LL-A-025
GM-LL-B-025
VW 502 00/ 505 00
BMW Longlife-01
MB-Approval 229.3
RENAULT RN07
Meets FIAT 9.55535-G1

...questo il Magnatec

[fntmra]

sinteticamente:
acea con numero più alto supera e soddisfa acea con numero più piccolo.
la lettera invece mi pare che distingua dalla tipologia di motore tra benzina, diesel, etc

A/B: gasoline and diesel engine oils

ACEA A1/B1 Stable, stay-in-grade oil intended for use at extended drain intervals in gasoline engines and car & light van diesel engines specifically designed to be capable of using low friction low viscosity oils with a high temperature / high shear rate viscosity of 2.6 mPa*s for xW/20 and 2.9 to 3.5 mPa.s for all other viscosity grades. These oils are unsuitable for use in some engines. Consult owner manual or handbook if in doubt.

ACEA A3/B3 Stable, stay-in-grade oil intended for use in high performance gasoline engines and car & light van diesel engines and/or for extended drain intervals where specified by the engine manufacturer, and/or for year-round use of low viscosity oils, and/or for severe operating conditions as defined by the engine manufacturer.

ACEA A3/B4 Stable, stay-in-grade oil intended for use in high performance gasoline and direct injection diesel engines, but also suitable for applications described under A3/B3.

ACEA A5/B5 Stable, stay-in-grade oil intended for use at extended drain intervals in high performance gasoline engines and car & light van diesel engines designed to be capable of using low friction low viscosity oils with a High temperature / High shear rate (HTHS) viscosity of 2.9 to 3.5 mPa.s. These oils are unsuitable for use in some engines. Consult owner manual or handbook if in doubt.
C: Catalyst compatibility oils

ACEA C1 Stable, stay-in-grade oil intended for use as catalyst compatible oil in vehicles with DPF and TWC in high performance car and light van diesel and gasoline engines requiring low friction, low viscosity, low SAPS oils with a minimum HTHS viscosity of 2.9 mPa.s. These oils will increase the DPF and TWC life and maintain the vehicles fuel economy. Warning: these oils have the lowest SAPS limits and are unsuitable for use in some engines. Consult owner manual or handbook if in doubt.

ACEA C2 Stable, stay-in-grade oil intended for use as catalyst compatible oil in vehicles with DPF and TWC in high performance car and light van diesel and gasoline engines designed to be capable of using low friction, low viscosity oils with a minimum HTHS viscosity of 2.9mPa.s. These oils will increase the DPF and TWC life and maintain the vehicles fuel economy. Warning: these oils are unsuitable for use in some engines. Consult owner manual or handbook if in doubt.

ACEA C3 Stable, stay-in-grade oil intended for use as catalyst compatible oil in vehicles with DPF and TWC in high performance car and light van diesel and gasoline engines, with a minimum HTHS viscosity of 3.5mPa.s. These oils will increase the DPF and TWC life. Warning: these oils are unsuitable for use in some engines. Consult owner manual or handbook if in doubt.

ACEA C4 Stable, stay-in-grade oil intended for use as catalyst compatible oil in vehicles with DPF and TWC in high performance car and light van diesel and gasoline engines requiring low SAPS oil with a minimum HTHS viscosity of 3.5mPa.s. These oils will increase the DPF and TWC life. Warning: these oils are unsuitable for use in some engines. Consult owner manual or handbook if in doubt.
E: Heavy Duty Diesel engine oils

ACEA E4 Stable, stay-in-grade oil providing excellent control of piston cleanliness, wear, soot handling and lubricant stability. It is recommended for highly rated diesel engines meeting Euro I, Euro II, Euro III, Euro IV and Euro V emission requirements and running under very severe conditions, e.g. significantly extended oil drain intervals according to the manufacturer's recommendations. It is suitable for engines without particulate filters, and for some EGR engines and some engines fitted with SCR NOx reduction systems. However, recommendations may differ between engine manufacturers so Driver Manuals and/or Dealers shall be consulted if in doubt.

ACEA E6 Stable, stay-in-grade oil providing excellent control of piston cleanliness, wear, soot handling and lubricant stability. It is recommended for highly rated diesel engines meeting Euro I, Euro II, Euro III, Euro IV, Euro V and Euro VI emission requirements and running under very severe conditions, e.g. significantly extended oil drain intervals according to the manufacturer's recommendations. It is suitable for EGR engines, with or without particulate filters, and for engines fitted with SCR NOx reduction systems. E6 quality is strongly recommended for engines fitted with particulate filters and is designed for use in combination with low sulphur diesel fuel. However, recommendations may differ between engine manufacturers so Driver Manuals and/or Dealers shall be consulted if in doubt.

ACEA E7 Stable, stay-in-grade oil providing effective control with respect to piston cleanliness and bore polishing. It further provides excellent wear control, soot handling and lubricant stability. It is recommended for highly rated diesel engines meeting Euro I, Euro II, Euro III, Euro IV and Euro V emission requirements and running under severe conditions, e.g. extended oil drain intervals according to the manufacturer's recommendations. It is suitable for engines without particulate filters, and for most EGR engines and most engines fitted with SCR NOx reduction systems. However, recommendations may differ between engine manufacturers so Driver Manuals and/or Dealers shall be consulted if in doubt.

ACEA E9 Stable, stay-in-grade oil providing effective control with respect to piston cleanliness and bore polishing. It further provides excellent wear control, soot handling and lubricant stability. It is recommended for highly rated diesel engines meeting Euro I, Euro II, Euro III, Euro IV, Euro V and Euro VI emission requirements and running under severe conditions, e.g. extended oil drain intervals according to the manufacturer's recommendations. It is suitable for engines with or without particulate filters, and for most EGR engines and for most engines fitted with SCR NOx reduction systems. E9 is strongly recommended for engines fitted with particulate filters and is designed for use in combination with low sulphur diesel fuel. However, recommendations may differ between engine manufacturers so Drivers Manuals and/or Dealers should be consulted if in doubt.

You can find more information about ACEA and the ACEA Engine Oil Sequences on ACEA's website.

[DanyLand]

..ok, spegno la Tv e mi metto a leggere

[Defy90]

Un saluto a tutti

Ritrovandomi anch'io immerso nel meraviglioso e sconfinato mondo della lubrificazione ho trovato questo in rete, magari può essere d'aiuto

http://www.bardahl.it/tecnologia/specifiche_lubrificanti_auto.html

[analisiolio]

E'e consigliabile rabboccare con olio della stessa marca e gradazione SAE, fino ad una certa % e se l'olio non è degradato, in quanto se lo fosse, potrebbero precipitare delle morchie derivanti dai prodotti di ossidazione generate durante il normale servizio del motore o gli additivi parzialmente degradati dell'olio .